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Finding the Fourth Proportional to 3,274.97, 4,518.72 and 1,877.72

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Solution

The fourth proportional to 3,274.97, 4,518.72 and 1,877.72 is: 2,590.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.97 : 4,518.72 = 1,877.72 : x
  2. Step 2: Convert to fraction form
    3,274.97/4,518.72 = 1,877.72/x
  3. Step 3: Cross multiply
    3,274.97x = 4,518.72 × 1,877.72
  4. Step 4: Simplify right side
    3,274.97x = 8,484,868.32
  5. Step 5: Solve for x
    x = 8,484,868.32/3,274.97
  6. Step 6: Final answer
    x = 2,590.83

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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.