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Finding the Fourth Proportional to 1,342.28, 1,851.66 and 894.92

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Solution

The fourth proportional to 1,342.28, 1,851.66 and 894.92 is: 1,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.28 : 1,851.66 = 894.92 : x
  2. Step 2: Convert to fraction form
    1,342.28/1,851.66 = 894.92/x
  3. Step 3: Cross multiply
    1,342.28x = 1,851.66 × 894.92
  4. Step 4: Simplify right side
    1,342.28x = 1,657,087.57
  5. Step 5: Solve for x
    x = 1,657,087.57/1,342.28
  6. Step 6: Final answer
    x = 1,234.53

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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.