Home / 3,388.07-5,082.11-1,438.91

Finding the Fourth Proportional to 3,388.07, 5,082.11 and 1,438.91

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Solution

The fourth proportional to 3,388.07, 5,082.11 and 1,438.91 is: 2,158.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.07 : 5,082.11 = 1,438.91 : x
  2. Step 2: Convert to fraction form
    3,388.07/5,082.11 = 1,438.91/x
  3. Step 3: Cross multiply
    3,388.07x = 5,082.11 × 1,438.91
  4. Step 4: Simplify right side
    3,388.07x = 7,312,691.71
  5. Step 5: Solve for x
    x = 7,312,691.71/3,388.07
  6. Step 6: Final answer
    x = 2,158.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.