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Finding the Fourth Proportional to 1,358.98, 1,876.17 and 894.58

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Solution

The fourth proportional to 1,358.98, 1,876.17 and 894.58 is: 1,235.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.98 : 1,876.17 = 894.58 : x
  2. Step 2: Convert to fraction form
    1,358.98/1,876.17 = 894.58/x
  3. Step 3: Cross multiply
    1,358.98x = 1,876.17 × 894.58
  4. Step 4: Simplify right side
    1,358.98x = 1,678,384.16
  5. Step 5: Solve for x
    x = 1,678,384.16/1,358.98
  6. Step 6: Final answer
    x = 1,235.03

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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.