Home / 5,354.17-8,031.69-1,405.42

Finding the Fourth Proportional to 5,354.17, 8,031.69 and 1,405.42

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Solution

The fourth proportional to 5,354.17, 8,031.69 and 1,405.42 is: 2,108.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,354.17 : 8,031.69 = 1,405.42 : x
  2. Step 2: Convert to fraction form
    5,354.17/8,031.69 = 1,405.42/x
  3. Step 3: Cross multiply
    5,354.17x = 8,031.69 × 1,405.42
  4. Step 4: Simplify right side
    5,354.17x = 11,287,877.68
  5. Step 5: Solve for x
    x = 11,287,877.68/5,354.17
  6. Step 6: Final answer
    x = 2,108.24

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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.