Home / 1,391.22-2,082.51-1,006.74

Finding the Fourth Proportional to 1,391.22, 2,082.51 and 1,006.74

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Solution

The fourth proportional to 1,391.22, 2,082.51 and 1,006.74 is: 1,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391.22 : 2,082.51 = 1,006.74 : x
  2. Step 2: Convert to fraction form
    1,391.22/2,082.51 = 1,006.74/x
  3. Step 3: Cross multiply
    1,391.22x = 2,082.51 × 1,006.74
  4. Step 4: Simplify right side
    1,391.22x = 2,096,546.12
  5. Step 5: Solve for x
    x = 2,096,546.12/1,391.22
  6. Step 6: Final answer
    x = 1,506.98

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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.