Home / 7,140.38-10,707.91-2,459.08

Finding the Fourth Proportional to 7,140.38, 10,707.91 and 2,459.08

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Solution

The fourth proportional to 7,140.38, 10,707.91 and 2,459.08 is: 3,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.38 : 10,707.91 = 2,459.08 : x
  2. Step 2: Convert to fraction form
    7,140.38/10,707.91 = 2,459.08/x
  3. Step 3: Cross multiply
    7,140.38x = 10,707.91 × 2,459.08
  4. Step 4: Simplify right side
    7,140.38x = 26,331,607.32
  5. Step 5: Solve for x
    x = 26,331,607.32/7,140.38
  6. Step 6: Final answer
    x = 3,687.70

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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.