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Finding the Fourth Proportional to 4,987.52, 7,481.04 and 1,867.28

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Solution

The fourth proportional to 4,987.52, 7,481.04 and 1,867.28 is: 2,800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.52 : 7,481.04 = 1,867.28 : x
  2. Step 2: Convert to fraction form
    4,987.52/7,481.04 = 1,867.28/x
  3. Step 3: Cross multiply
    4,987.52x = 7,481.04 × 1,867.28
  4. Step 4: Simplify right side
    4,987.52x = 13,969,196.37
  5. Step 5: Solve for x
    x = 13,969,196.37/4,987.52
  6. Step 6: Final answer
    x = 2,800.83

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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.