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Finding the Fourth Proportional to 2,597.66, 3,896.43 and 1,557.95

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Solution

The fourth proportional to 2,597.66, 3,896.43 and 1,557.95 is: 2,336.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,597.66 : 3,896.43 = 1,557.95 : x
  2. Step 2: Convert to fraction form
    2,597.66/3,896.43 = 1,557.95/x
  3. Step 3: Cross multiply
    2,597.66x = 3,896.43 × 1,557.95
  4. Step 4: Simplify right side
    2,597.66x = 6,070,423.64
  5. Step 5: Solve for x
    x = 6,070,423.64/2,597.66
  6. Step 6: Final answer
    x = 2,336.89

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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.