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Finding the Fourth Proportional to 1,331.01, 1,836.76 and 741.53

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Solution

The fourth proportional to 1,331.01, 1,836.76 and 741.53 is: 1,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.01 : 1,836.76 = 741.53 : x
  2. Step 2: Convert to fraction form
    1,331.01/1,836.76 = 741.53/x
  3. Step 3: Cross multiply
    1,331.01x = 1,836.76 × 741.53
  4. Step 4: Simplify right side
    1,331.01x = 1,362,018.16
  5. Step 5: Solve for x
    x = 1,362,018.16/1,331.01
  6. Step 6: Final answer
    x = 1,023.30

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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.