Home / 4,270.64-5,881.32-3,920.72

Finding the Fourth Proportional to 4,270.64, 5,881.32 and 3,920.72

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Solution

The fourth proportional to 4,270.64, 5,881.32 and 3,920.72 is: 5,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.64 : 5,881.32 = 3,920.72 : x
  2. Step 2: Convert to fraction form
    4,270.64/5,881.32 = 3,920.72/x
  3. Step 3: Cross multiply
    4,270.64x = 5,881.32 × 3,920.72
  4. Step 4: Simplify right side
    4,270.64x = 23,059,008.95
  5. Step 5: Solve for x
    x = 23,059,008.95/4,270.64
  6. Step 6: Final answer
    x = 5,399.43

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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.