Home / 5,430.17-8,132.49-2,648.12

Finding the Fourth Proportional to 5,430.17, 8,132.49 and 2,648.12

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Solution

The fourth proportional to 5,430.17, 8,132.49 and 2,648.12 is: 3,965.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.17 : 8,132.49 = 2,648.12 : x
  2. Step 2: Convert to fraction form
    5,430.17/8,132.49 = 2,648.12/x
  3. Step 3: Cross multiply
    5,430.17x = 8,132.49 × 2,648.12
  4. Step 4: Simplify right side
    5,430.17x = 21,535,768.76
  5. Step 5: Solve for x
    x = 21,535,768.76/5,430.17
  6. Step 6: Final answer
    x = 3,965.95

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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.