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Finding the Fourth Proportional to 7,200.90, 9,932.40 and 4,546.08

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Solution

The fourth proportional to 7,200.90, 9,932.40 and 4,546.08 is: 6,270.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.90 : 9,932.40 = 4,546.08 : x
  2. Step 2: Convert to fraction form
    7,200.90/9,932.40 = 4,546.08/x
  3. Step 3: Cross multiply
    7,200.90x = 9,932.40 × 4,546.08
  4. Step 4: Simplify right side
    7,200.90x = 45,153,484.99
  5. Step 5: Solve for x
    x = 45,153,484.99/7,200.90
  6. Step 6: Final answer
    x = 6,270.53

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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.