Home / 4,987.89-7,475.40-2,517.17

Finding the Fourth Proportional to 4,987.89, 7,475.40 and 2,517.17

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Solution

The fourth proportional to 4,987.89, 7,475.40 and 2,517.17 is: 3,772.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.89 : 7,475.40 = 2,517.17 : x
  2. Step 2: Convert to fraction form
    4,987.89/7,475.40 = 2,517.17/x
  3. Step 3: Cross multiply
    4,987.89x = 7,475.40 × 2,517.17
  4. Step 4: Simplify right side
    4,987.89x = 18,816,815.24
  5. Step 5: Solve for x
    x = 18,816,815.24/4,987.89
  6. Step 6: Final answer
    x = 3,772.50

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1.5x scale

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.