Home / 5,451.30-8,180.53-2,987.84

Finding the Fourth Proportional to 5,451.30, 8,180.53 and 2,987.84

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Solution

The fourth proportional to 5,451.30, 8,180.53 and 2,987.84 is: 4,483.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.30 : 8,180.53 = 2,987.84 : x
  2. Step 2: Convert to fraction form
    5,451.30/8,180.53 = 2,987.84/x
  3. Step 3: Cross multiply
    5,451.30x = 8,180.53 × 2,987.84
  4. Step 4: Simplify right side
    5,451.30x = 24,442,127.74
  5. Step 5: Solve for x
    x = 24,442,127.74/5,451.30
  6. Step 6: Final answer
    x = 4,483.72

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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.