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Finding the Fourth Proportional to 2,261.86, 3,391.71 and 1,800.88

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Solution

The fourth proportional to 2,261.86, 3,391.71 and 1,800.88 is: 2,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.86 : 3,391.71 = 1,800.88 : x
  2. Step 2: Convert to fraction form
    2,261.86/3,391.71 = 1,800.88/x
  3. Step 3: Cross multiply
    2,261.86x = 3,391.71 × 1,800.88
  4. Step 4: Simplify right side
    2,261.86x = 6,108,062.70
  5. Step 5: Solve for x
    x = 6,108,062.70/2,261.86
  6. Step 6: Final answer
    x = 2,700.46

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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.