Home / 7,620.20-11,430.28-2,426.06

Finding the Fourth Proportional to 7,620.20, 11,430.28 and 2,426.06

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Solution

The fourth proportional to 7,620.20, 11,430.28 and 2,426.06 is: 3,639.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.20 : 11,430.28 = 2,426.06 : x
  2. Step 2: Convert to fraction form
    7,620.20/11,430.28 = 2,426.06/x
  3. Step 3: Cross multiply
    7,620.20x = 11,430.28 × 2,426.06
  4. Step 4: Simplify right side
    7,620.20x = 27,730,545.10
  5. Step 5: Solve for x
    x = 27,730,545.10/7,620.20
  6. Step 6: Final answer
    x = 3,639.08

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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.