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Finding the Fourth Proportional to 3,049.65, 4,574.45 and 858.33

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Solution

The fourth proportional to 3,049.65, 4,574.45 and 858.33 is: 1,287.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.65 : 4,574.45 = 858.33 : x
  2. Step 2: Convert to fraction form
    3,049.65/4,574.45 = 858.33/x
  3. Step 3: Cross multiply
    3,049.65x = 4,574.45 × 858.33
  4. Step 4: Simplify right side
    3,049.65x = 3,926,389.81
  5. Step 5: Solve for x
    x = 3,926,389.81/3,049.65
  6. Step 6: Final answer
    x = 1,287.49

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.