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Finding the Fourth Proportional to 7,355.70, 10,151.09 and 4,211.70

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Solution

The fourth proportional to 7,355.70, 10,151.09 and 4,211.70 is: 5,812.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.70 : 10,151.09 = 4,211.70 : x
  2. Step 2: Convert to fraction form
    7,355.70/10,151.09 = 4,211.70/x
  3. Step 3: Cross multiply
    7,355.70x = 10,151.09 × 4,211.70
  4. Step 4: Simplify right side
    7,355.70x = 42,753,345.75
  5. Step 5: Solve for x
    x = 42,753,345.75/7,355.70
  6. Step 6: Final answer
    x = 5,812.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.