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Finding the Fourth Proportional to 1,358.00, 1,873.29 and 885.23

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Solution

The fourth proportional to 1,358.00, 1,873.29 and 885.23 is: 1,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.00 : 1,873.29 = 885.23 : x
  2. Step 2: Convert to fraction form
    1,358.00/1,873.29 = 885.23/x
  3. Step 3: Cross multiply
    1,358.00x = 1,873.29 × 885.23
  4. Step 4: Simplify right side
    1,358.00x = 1,658,293.48
  5. Step 5: Solve for x
    x = 1,658,293.48/1,358.00
  6. Step 6: Final answer
    x = 1,221.13

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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.