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Finding the Fourth Proportional to 1,330.96, 1,836.69 and 741.49

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Solution

The fourth proportional to 1,330.96, 1,836.69 and 741.49 is: 1,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.96 : 1,836.69 = 741.49 : x
  2. Step 2: Convert to fraction form
    1,330.96/1,836.69 = 741.49/x
  3. Step 3: Cross multiply
    1,330.96x = 1,836.69 × 741.49
  4. Step 4: Simplify right side
    1,330.96x = 1,361,887.27
  5. Step 5: Solve for x
    x = 1,361,887.27/1,330.96
  6. Step 6: Final answer
    x = 1,023.24

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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.