Home / 3,031.52-4,543.44-2,640.80

Finding the Fourth Proportional to 3,031.52, 4,543.44 and 2,640.80

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Solution

The fourth proportional to 3,031.52, 4,543.44 and 2,640.80 is: 3,957.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.52 : 4,543.44 = 2,640.80 : x
  2. Step 2: Convert to fraction form
    3,031.52/4,543.44 = 2,640.80/x
  3. Step 3: Cross multiply
    3,031.52x = 4,543.44 × 2,640.80
  4. Step 4: Simplify right side
    3,031.52x = 11,998,316.35
  5. Step 5: Solve for x
    x = 11,998,316.35/3,031.52
  6. Step 6: Final answer
    x = 3,957.85

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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.