Home / 1,616.90-2,421.70-1,132.11

Finding the Fourth Proportional to 1,616.90, 2,421.70 and 1,132.11

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Solution

The fourth proportional to 1,616.90, 2,421.70 and 1,132.11 is: 1,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616.90 : 2,421.70 = 1,132.11 : x
  2. Step 2: Convert to fraction form
    1,616.90/2,421.70 = 1,132.11/x
  3. Step 3: Cross multiply
    1,616.90x = 2,421.70 × 1,132.11
  4. Step 4: Simplify right side
    1,616.90x = 2,741,627.96
  5. Step 5: Solve for x
    x = 2,741,627.96/1,616.90
  6. Step 6: Final answer
    x = 1,695.61

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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.