Home / 5,132.16-7,082.40-2,774.31

Finding the Fourth Proportional to 5,132.16, 7,082.40 and 2,774.31

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Solution

The fourth proportional to 5,132.16, 7,082.40 and 2,774.31 is: 3,828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.16 : 7,082.40 = 2,774.31 : x
  2. Step 2: Convert to fraction form
    5,132.16/7,082.40 = 2,774.31/x
  3. Step 3: Cross multiply
    5,132.16x = 7,082.40 × 2,774.31
  4. Step 4: Simplify right side
    5,132.16x = 19,648,773.14
  5. Step 5: Solve for x
    x = 19,648,773.14/5,132.16
  6. Step 6: Final answer
    x = 3,828.56

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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.