Home / 5,412.47-8,119.71-1,714.95

Finding the Fourth Proportional to 5,412.47, 8,119.71 and 1,714.95

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Solution

The fourth proportional to 5,412.47, 8,119.71 and 1,714.95 is: 2,572.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.47 : 8,119.71 = 1,714.95 : x
  2. Step 2: Convert to fraction form
    5,412.47/8,119.71 = 1,714.95/x
  3. Step 3: Cross multiply
    5,412.47x = 8,119.71 × 1,714.95
  4. Step 4: Simplify right side
    5,412.47x = 13,924,896.66
  5. Step 5: Solve for x
    x = 13,924,896.66/5,412.47
  6. Step 6: Final answer
    x = 2,572.75

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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.