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Finding the Fourth Proportional to 1,854.88, 2,772.07 and 1,487.95

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Solution

The fourth proportional to 1,854.88, 2,772.07 and 1,487.95 is: 2,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.88 : 2,772.07 = 1,487.95 : x
  2. Step 2: Convert to fraction form
    1,854.88/2,772.07 = 1,487.95/x
  3. Step 3: Cross multiply
    1,854.88x = 2,772.07 × 1,487.95
  4. Step 4: Simplify right side
    1,854.88x = 4,124,701.56
  5. Step 5: Solve for x
    x = 4,124,701.56/1,854.88
  6. Step 6: Final answer
    x = 2,223.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.