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Finding the Fourth Proportional to 7,209.60, 9,950.22 and 4,557.68

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Solution

The fourth proportional to 7,209.60, 9,950.22 and 4,557.68 is: 6,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.60 : 9,950.22 = 4,557.68 : x
  2. Step 2: Convert to fraction form
    7,209.60/9,950.22 = 4,557.68/x
  3. Step 3: Cross multiply
    7,209.60x = 9,950.22 × 4,557.68
  4. Step 4: Simplify right side
    7,209.60x = 45,349,918.69
  5. Step 5: Solve for x
    x = 45,349,918.69/7,209.60
  6. Step 6: Final answer
    x = 6,290.21

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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.