Home / 5,132.48-7,082.78-2,774.61

Finding the Fourth Proportional to 5,132.48, 7,082.78 and 2,774.61

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Solution

The fourth proportional to 5,132.48, 7,082.78 and 2,774.61 is: 3,828.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.48 : 7,082.78 = 2,774.61 : x
  2. Step 2: Convert to fraction form
    5,132.48/7,082.78 = 2,774.61/x
  3. Step 3: Cross multiply
    5,132.48x = 7,082.78 × 2,774.61
  4. Step 4: Simplify right side
    5,132.48x = 19,651,938.34
  5. Step 5: Solve for x
    x = 19,651,938.34/5,132.48
  6. Step 6: Final answer
    x = 3,828.94

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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.