Home / 4,987.32-7,481.30-2,931

Finding the Fourth Proportional to 4,987.32, 7,481.30 and 2,931

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Solution

The fourth proportional to 4,987.32, 7,481.30 and 2,931 is: 4,396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.32 : 7,481.30 = 2,931 : x
  2. Step 2: Convert to fraction form
    4,987.32/7,481.30 = 2,931/x
  3. Step 3: Cross multiply
    4,987.32x = 7,481.30 × 2,931
  4. Step 4: Simplify right side
    4,987.32x = 21,927,690.30
  5. Step 5: Solve for x
    x = 21,927,690.30/4,987.32
  6. Step 6: Final answer
    x = 4,396.69

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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.