Home / 3,432.80-4,739.02-2,175.16

Finding the Fourth Proportional to 3,432.80, 4,739.02 and 2,175.16

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Solution

The fourth proportional to 3,432.80, 4,739.02 and 2,175.16 is: 3,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.80 : 4,739.02 = 2,175.16 : x
  2. Step 2: Convert to fraction form
    3,432.80/4,739.02 = 2,175.16/x
  3. Step 3: Cross multiply
    3,432.80x = 4,739.02 × 2,175.16
  4. Step 4: Simplify right side
    3,432.80x = 10,308,126.74
  5. Step 5: Solve for x
    x = 10,308,126.74/3,432.80
  6. Step 6: Final answer
    x = 3,002.83

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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.