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Finding the Fourth Proportional to 1,325.18, 1,825.04 and 1,296.48

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Solution

The fourth proportional to 1,325.18, 1,825.04 and 1,296.48 is: 1,785.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.18 : 1,825.04 = 1,296.48 : x
  2. Step 2: Convert to fraction form
    1,325.18/1,825.04 = 1,296.48/x
  3. Step 3: Cross multiply
    1,325.18x = 1,825.04 × 1,296.48
  4. Step 4: Simplify right side
    1,325.18x = 2,366,121.38
  5. Step 5: Solve for x
    x = 2,366,121.38/1,325.18
  6. Step 6: Final answer
    x = 1,785.52

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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.