Home / 1,630.27-2,442.33-807.58

Finding the Fourth Proportional to 1,630.27, 2,442.33 and 807.58

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Solution

The fourth proportional to 1,630.27, 2,442.33 and 807.58 is: 1,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.27 : 2,442.33 = 807.58 : x
  2. Step 2: Convert to fraction form
    1,630.27/2,442.33 = 807.58/x
  3. Step 3: Cross multiply
    1,630.27x = 2,442.33 × 807.58
  4. Step 4: Simplify right side
    1,630.27x = 1,972,376.86
  5. Step 5: Solve for x
    x = 1,972,376.86/1,630.27
  6. Step 6: Final answer
    x = 1,209.85

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1.5x scale

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.