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Finding the Fourth Proportional to 2,597.40, 3,896.25 and 748.47

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Solution

The fourth proportional to 2,597.40, 3,896.25 and 748.47 is: 1,122.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,597.40 : 3,896.25 = 748.47 : x
  2. Step 2: Convert to fraction form
    2,597.40/3,896.25 = 748.47/x
  3. Step 3: Cross multiply
    2,597.40x = 3,896.25 × 748.47
  4. Step 4: Simplify right side
    2,597.40x = 2,916,226.24
  5. Step 5: Solve for x
    x = 2,916,226.24/2,597.40
  6. Step 6: Final answer
    x = 1,122.75

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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.