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Finding the Fourth Proportional to 7,006.57, 10,507.79 and 3,717.90

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Solution

The fourth proportional to 7,006.57, 10,507.79 and 3,717.90 is: 5,575.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,006.57 : 10,507.79 = 3,717.90 : x
  2. Step 2: Convert to fraction form
    7,006.57/10,507.79 = 3,717.90/x
  3. Step 3: Cross multiply
    7,006.57x = 10,507.79 × 3,717.90
  4. Step 4: Simplify right side
    7,006.57x = 39,066,921.74
  5. Step 5: Solve for x
    x = 39,066,921.74/7,006.57
  6. Step 6: Final answer
    x = 5,575.76

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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.