Home / 4,876.92-6,730.02-2,781.72

Finding the Fourth Proportional to 4,876.92, 6,730.02 and 2,781.72

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Solution

The fourth proportional to 4,876.92, 6,730.02 and 2,781.72 is: 3,838.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.92 : 6,730.02 = 2,781.72 : x
  2. Step 2: Convert to fraction form
    4,876.92/6,730.02 = 2,781.72/x
  3. Step 3: Cross multiply
    4,876.92x = 6,730.02 × 2,781.72
  4. Step 4: Simplify right side
    4,876.92x = 18,721,031.23
  5. Step 5: Solve for x
    x = 18,721,031.23/4,876.92
  6. Step 6: Final answer
    x = 3,838.70

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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.