Home / 6,490.47-9,739.49-4,272.04

Finding the Fourth Proportional to 6,490.47, 9,739.49 and 4,272.04

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Solution

The fourth proportional to 6,490.47, 9,739.49 and 4,272.04 is: 6,410.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.47 : 9,739.49 = 4,272.04 : x
  2. Step 2: Convert to fraction form
    6,490.47/9,739.49 = 4,272.04/x
  3. Step 3: Cross multiply
    6,490.47x = 9,739.49 × 4,272.04
  4. Step 4: Simplify right side
    6,490.47x = 41,607,490.86
  5. Step 5: Solve for x
    x = 41,607,490.86/6,490.47
  6. Step 6: Final answer
    x = 6,410.55

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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.