Home / 3,871.47-5,344.01-2,299.57

Finding the Fourth Proportional to 3,871.47, 5,344.01 and 2,299.57

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Solution

The fourth proportional to 3,871.47, 5,344.01 and 2,299.57 is: 3,174.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.47 : 5,344.01 = 2,299.57 : x
  2. Step 2: Convert to fraction form
    3,871.47/5,344.01 = 2,299.57/x
  3. Step 3: Cross multiply
    3,871.47x = 5,344.01 × 2,299.57
  4. Step 4: Simplify right side
    3,871.47x = 12,288,925.08
  5. Step 5: Solve for x
    x = 12,288,925.08/3,871.47
  6. Step 6: Final answer
    x = 3,174.23

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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.