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Finding the Fourth Proportional to 3,051.09, 4,576.59 and 859.80

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Solution

The fourth proportional to 3,051.09, 4,576.59 and 859.80 is: 1,289.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.09 : 4,576.59 = 859.80 : x
  2. Step 2: Convert to fraction form
    3,051.09/4,576.59 = 859.80/x
  3. Step 3: Cross multiply
    3,051.09x = 4,576.59 × 859.80
  4. Step 4: Simplify right side
    3,051.09x = 3,934,952.08
  5. Step 5: Solve for x
    x = 3,934,952.08/3,051.09
  6. Step 6: Final answer
    x = 1,289.69

Related Problems

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Double scale
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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.