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Finding the Fourth Proportional to 7,572.19, 10,449.10 and 4,739.45

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Solution

The fourth proportional to 7,572.19, 10,449.10 and 4,739.45 is: 6,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.19 : 10,449.10 = 4,739.45 : x
  2. Step 2: Convert to fraction form
    7,572.19/10,449.10 = 4,739.45/x
  3. Step 3: Cross multiply
    7,572.19x = 10,449.10 × 4,739.45
  4. Step 4: Simplify right side
    7,572.19x = 49,522,987.00
  5. Step 5: Solve for x
    x = 49,522,987.00/7,572.19
  6. Step 6: Final answer
    x = 6,540.11

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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.