Home / 5,132.21-7,082.43-2,774.34

Finding the Fourth Proportional to 5,132.21, 7,082.43 and 2,774.34

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Solution

The fourth proportional to 5,132.21, 7,082.43 and 2,774.34 is: 3,828.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.21 : 7,082.43 = 2,774.34 : x
  2. Step 2: Convert to fraction form
    5,132.21/7,082.43 = 2,774.34/x
  3. Step 3: Cross multiply
    5,132.21x = 7,082.43 × 2,774.34
  4. Step 4: Simplify right side
    5,132.21x = 19,649,068.85
  5. Step 5: Solve for x
    x = 19,649,068.85/5,132.21
  6. Step 6: Final answer
    x = 3,828.58

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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.