Home / 3,275.85-4,521.66-2,157.66

Finding the Fourth Proportional to 3,275.85, 4,521.66 and 2,157.66

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Solution

The fourth proportional to 3,275.85, 4,521.66 and 2,157.66 is: 2,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.85 : 4,521.66 = 2,157.66 : x
  2. Step 2: Convert to fraction form
    3,275.85/4,521.66 = 2,157.66/x
  3. Step 3: Cross multiply
    3,275.85x = 4,521.66 × 2,157.66
  4. Step 4: Simplify right side
    3,275.85x = 9,756,204.92
  5. Step 5: Solve for x
    x = 9,756,204.92/3,275.85
  6. Step 6: Final answer
    x = 2,978.22

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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.