Home / 1,354.65-2,031.96-1,108.61

Finding the Fourth Proportional to 1,354.65, 2,031.96 and 1,108.61

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Solution

The fourth proportional to 1,354.65, 2,031.96 and 1,108.61 is: 1,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.65 : 2,031.96 = 1,108.61 : x
  2. Step 2: Convert to fraction form
    1,354.65/2,031.96 = 1,108.61/x
  3. Step 3: Cross multiply
    1,354.65x = 2,031.96 × 1,108.61
  4. Step 4: Simplify right side
    1,354.65x = 2,252,651.18
  5. Step 5: Solve for x
    x = 2,252,651.18/1,354.65
  6. Step 6: Final answer
    x = 1,662.90

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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.