Home / 7,243.10-10,864.65-2,858.30

Finding the Fourth Proportional to 7,243.10, 10,864.65 and 2,858.30

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Solution

The fourth proportional to 7,243.10, 10,864.65 and 2,858.30 is: 4,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.10 : 10,864.65 = 2,858.30 : x
  2. Step 2: Convert to fraction form
    7,243.10/10,864.65 = 2,858.30/x
  3. Step 3: Cross multiply
    7,243.10x = 10,864.65 × 2,858.30
  4. Step 4: Simplify right side
    7,243.10x = 31,054,429.10
  5. Step 5: Solve for x
    x = 31,054,429.10/7,243.10
  6. Step 6: Final answer
    x = 4,287.45

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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.