Home / 3,543.90-5,315.85-1,234.86

Finding the Fourth Proportional to 3,543.90, 5,315.85 and 1,234.86

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Solution

The fourth proportional to 3,543.90, 5,315.85 and 1,234.86 is: 1,852.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.90 : 5,315.85 = 1,234.86 : x
  2. Step 2: Convert to fraction form
    3,543.90/5,315.85 = 1,234.86/x
  3. Step 3: Cross multiply
    3,543.90x = 5,315.85 × 1,234.86
  4. Step 4: Simplify right side
    3,543.90x = 6,564,330.53
  5. Step 5: Solve for x
    x = 6,564,330.53/3,543.90
  6. Step 6: Final answer
    x = 1,852.29

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Similar ratio
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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.