Home / 3,869.76-5,330.45-3,601.55

Finding the Fourth Proportional to 3,869.76, 5,330.45 and 3,601.55

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Solution

The fourth proportional to 3,869.76, 5,330.45 and 3,601.55 is: 4,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.76 : 5,330.45 = 3,601.55 : x
  2. Step 2: Convert to fraction form
    3,869.76/5,330.45 = 3,601.55/x
  3. Step 3: Cross multiply
    3,869.76x = 5,330.45 × 3,601.55
  4. Step 4: Simplify right side
    3,869.76x = 19,197,837.54
  5. Step 5: Solve for x
    x = 19,197,837.54/3,869.76
  6. Step 6: Final answer
    x = 4,960.99

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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.