Home / 7,077.75-10,616.65-2,147.43

Finding the Fourth Proportional to 7,077.75, 10,616.65 and 2,147.43

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Solution

The fourth proportional to 7,077.75, 10,616.65 and 2,147.43 is: 3,221.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.75 : 10,616.65 = 2,147.43 : x
  2. Step 2: Convert to fraction form
    7,077.75/10,616.65 = 2,147.43/x
  3. Step 3: Cross multiply
    7,077.75x = 10,616.65 × 2,147.43
  4. Step 4: Simplify right side
    7,077.75x = 22,798,512.71
  5. Step 5: Solve for x
    x = 22,798,512.71/7,077.75
  6. Step 6: Final answer
    x = 3,221.15

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1.5x scale

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.