Home / 1,335.17-2,001.13-945.28

Finding the Fourth Proportional to 1,335.17, 2,001.13 and 945.28

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Solution

The fourth proportional to 1,335.17, 2,001.13 and 945.28 is: 1,416.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.17 : 2,001.13 = 945.28 : x
  2. Step 2: Convert to fraction form
    1,335.17/2,001.13 = 945.28/x
  3. Step 3: Cross multiply
    1,335.17x = 2,001.13 × 945.28
  4. Step 4: Simplify right side
    1,335.17x = 1,891,639.93
  5. Step 5: Solve for x
    x = 1,891,639.93/1,335.17
  6. Step 6: Final answer
    x = 1,416.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.