Home / 4,387.12-6,052.80-2,987.44

Finding the Fourth Proportional to 4,387.12, 6,052.80 and 2,987.44

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Solution

The fourth proportional to 4,387.12, 6,052.80 and 2,987.44 is: 4,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387.12 : 6,052.80 = 2,987.44 : x
  2. Step 2: Convert to fraction form
    4,387.12/6,052.80 = 2,987.44/x
  3. Step 3: Cross multiply
    4,387.12x = 6,052.80 × 2,987.44
  4. Step 4: Simplify right side
    4,387.12x = 18,082,376.83
  5. Step 5: Solve for x
    x = 18,082,376.83/4,387.12
  6. Step 6: Final answer
    x = 4,121.70

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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.