Home / 3,818.76-5,266.08-2,876.76

Finding the Fourth Proportional to 3,818.76, 5,266.08 and 2,876.76

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Solution

The fourth proportional to 3,818.76, 5,266.08 and 2,876.76 is: 3,967.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.76 : 5,266.08 = 2,876.76 : x
  2. Step 2: Convert to fraction form
    3,818.76/5,266.08 = 2,876.76/x
  3. Step 3: Cross multiply
    3,818.76x = 5,266.08 × 2,876.76
  4. Step 4: Simplify right side
    3,818.76x = 15,149,248.30
  5. Step 5: Solve for x
    x = 15,149,248.30/3,818.76
  6. Step 6: Final answer
    x = 3,967.06

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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.