Home / 3,144.92-4,340.04-1,818.74

Finding the Fourth Proportional to 3,144.92, 4,340.04 and 1,818.74

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Solution

The fourth proportional to 3,144.92, 4,340.04 and 1,818.74 is: 2,509.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.92 : 4,340.04 = 1,818.74 : x
  2. Step 2: Convert to fraction form
    3,144.92/4,340.04 = 1,818.74/x
  3. Step 3: Cross multiply
    3,144.92x = 4,340.04 × 1,818.74
  4. Step 4: Simplify right side
    3,144.92x = 7,893,404.35
  5. Step 5: Solve for x
    x = 7,893,404.35/3,144.92
  6. Step 6: Final answer
    x = 2,509.89

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.