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Finding the Fourth Proportional to 7,070.70, 10,606.80 and 2,391.24

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Solution

The fourth proportional to 7,070.70, 10,606.80 and 2,391.24 is: 3,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.70 : 10,606.80 = 2,391.24 : x
  2. Step 2: Convert to fraction form
    7,070.70/10,606.80 = 2,391.24/x
  3. Step 3: Cross multiply
    7,070.70x = 10,606.80 × 2,391.24
  4. Step 4: Simplify right side
    7,070.70x = 25,363,404.43
  5. Step 5: Solve for x
    x = 25,363,404.43/7,070.70
  6. Step 6: Final answer
    x = 3,587.11

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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.