Home / 4,320.14-5,960.76-3,139.16

Finding the Fourth Proportional to 4,320.14, 5,960.76 and 3,139.16

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Solution

The fourth proportional to 4,320.14, 5,960.76 and 3,139.16 is: 4,331.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.14 : 5,960.76 = 3,139.16 : x
  2. Step 2: Convert to fraction form
    4,320.14/5,960.76 = 3,139.16/x
  3. Step 3: Cross multiply
    4,320.14x = 5,960.76 × 3,139.16
  4. Step 4: Simplify right side
    4,320.14x = 18,711,779.36
  5. Step 5: Solve for x
    x = 18,711,779.36/4,320.14
  6. Step 6: Final answer
    x = 4,331.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.