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Finding the Fourth Proportional to 7,125.30, 10,687.95 and 2,508.30

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Solution

The fourth proportional to 7,125.30, 10,687.95 and 2,508.30 is: 3,762.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.30 : 10,687.95 = 2,508.30 : x
  2. Step 2: Convert to fraction form
    7,125.30/10,687.95 = 2,508.30/x
  3. Step 3: Cross multiply
    7,125.30x = 10,687.95 × 2,508.30
  4. Step 4: Simplify right side
    7,125.30x = 26,808,584.99
  5. Step 5: Solve for x
    x = 26,808,584.99/7,125.30
  6. Step 6: Final answer
    x = 3,762.45

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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.