Home / 3,261.52-4,891.88-1,388.17

Finding the Fourth Proportional to 3,261.52, 4,891.88 and 1,388.17

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Solution

The fourth proportional to 3,261.52, 4,891.88 and 1,388.17 is: 2,082.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.52 : 4,891.88 = 1,388.17 : x
  2. Step 2: Convert to fraction form
    3,261.52/4,891.88 = 1,388.17/x
  3. Step 3: Cross multiply
    3,261.52x = 4,891.88 × 1,388.17
  4. Step 4: Simplify right side
    3,261.52x = 6,790,740.07
  5. Step 5: Solve for x
    x = 6,790,740.07/3,261.52
  6. Step 6: Final answer
    x = 2,082.08

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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.