Home / 4,987.25-7,480.88-1,339.25

Finding the Fourth Proportional to 4,987.25, 7,480.88 and 1,339.25

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Solution

The fourth proportional to 4,987.25, 7,480.88 and 1,339.25 is: 2,008.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.25 : 7,480.88 = 1,339.25 : x
  2. Step 2: Convert to fraction form
    4,987.25/7,480.88 = 1,339.25/x
  3. Step 3: Cross multiply
    4,987.25x = 7,480.88 × 1,339.25
  4. Step 4: Simplify right side
    4,987.25x = 10,018,761.84
  5. Step 5: Solve for x
    x = 10,018,761.84/4,987.25
  6. Step 6: Final answer
    x = 2,008.88

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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.