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Finding the Fourth Proportional to 2,591.78, 3,888.47 and 1,552.95

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Solution

The fourth proportional to 2,591.78, 3,888.47 and 1,552.95 is: 2,329.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.78 : 3,888.47 = 1,552.95 : x
  2. Step 2: Convert to fraction form
    2,591.78/3,888.47 = 1,552.95/x
  3. Step 3: Cross multiply
    2,591.78x = 3,888.47 × 1,552.95
  4. Step 4: Simplify right side
    2,591.78x = 6,038,591.72
  5. Step 5: Solve for x
    x = 6,038,591.72/2,591.78
  6. Step 6: Final answer
    x = 2,329.91

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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.