Home / 3,275.42-4,520.27-1,931.48

Finding the Fourth Proportional to 3,275.42, 4,520.27 and 1,931.48

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Solution

The fourth proportional to 3,275.42, 4,520.27 and 1,931.48 is: 2,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.42 : 4,520.27 = 1,931.48 : x
  2. Step 2: Convert to fraction form
    3,275.42/4,520.27 = 1,931.48/x
  3. Step 3: Cross multiply
    3,275.42x = 4,520.27 × 1,931.48
  4. Step 4: Simplify right side
    3,275.42x = 8,730,811.10
  5. Step 5: Solve for x
    x = 8,730,811.10/3,275.42
  6. Step 6: Final answer
    x = 2,665.55

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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.