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Finding the Fourth Proportional to 1,325.48, 1,828.13 and 927.01

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Solution

The fourth proportional to 1,325.48, 1,828.13 and 927.01 is: 1,278.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.48 : 1,828.13 = 927.01 : x
  2. Step 2: Convert to fraction form
    1,325.48/1,828.13 = 927.01/x
  3. Step 3: Cross multiply
    1,325.48x = 1,828.13 × 927.01
  4. Step 4: Simplify right side
    1,325.48x = 1,694,685.59
  5. Step 5: Solve for x
    x = 1,694,685.59/1,325.48
  6. Step 6: Final answer
    x = 1,278.55

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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.