Home / 3,818.61-5,753.93-3,140.47

Finding the Fourth Proportional to 3,818.61, 5,753.93 and 3,140.47

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Solution

The fourth proportional to 3,818.61, 5,753.93 and 3,140.47 is: 4,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.61 : 5,753.93 = 3,140.47 : x
  2. Step 2: Convert to fraction form
    3,818.61/5,753.93 = 3,140.47/x
  3. Step 3: Cross multiply
    3,818.61x = 5,753.93 × 3,140.47
  4. Step 4: Simplify right side
    3,818.61x = 18,070,044.55
  5. Step 5: Solve for x
    x = 18,070,044.55/3,818.61
  6. Step 6: Final answer
    x = 4,732.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.