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Finding the Fourth Proportional to 7,139.17, 10,713.63 and 2,522.17

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Solution

The fourth proportional to 7,139.17, 10,713.63 and 2,522.17 is: 3,784.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.17 : 10,713.63 = 2,522.17 : x
  2. Step 2: Convert to fraction form
    7,139.17/10,713.63 = 2,522.17/x
  3. Step 3: Cross multiply
    7,139.17x = 10,713.63 × 2,522.17
  4. Step 4: Simplify right side
    7,139.17x = 27,021,596.18
  5. Step 5: Solve for x
    x = 27,021,596.18/7,139.17
  6. Step 6: Final answer
    x = 3,784.98

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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.