Home / 6,349.14-8,759.40-3,987.18

Finding the Fourth Proportional to 6,349.14, 8,759.40 and 3,987.18

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Solution

The fourth proportional to 6,349.14, 8,759.40 and 3,987.18 is: 5,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.14 : 8,759.40 = 3,987.18 : x
  2. Step 2: Convert to fraction form
    6,349.14/8,759.40 = 3,987.18/x
  3. Step 3: Cross multiply
    6,349.14x = 8,759.40 × 3,987.18
  4. Step 4: Simplify right side
    6,349.14x = 34,925,304.49
  5. Step 5: Solve for x
    x = 34,925,304.49/6,349.14
  6. Step 6: Final answer
    x = 5,500.79

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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.