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Finding the Fourth Proportional to 1,127.95, 1,694.91 and 608.35

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Solution

The fourth proportional to 1,127.95, 1,694.91 and 608.35 is: 914.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127.95 : 1,694.91 = 608.35 : x
  2. Step 2: Convert to fraction form
    1,127.95/1,694.91 = 608.35/x
  3. Step 3: Cross multiply
    1,127.95x = 1,694.91 × 608.35
  4. Step 4: Simplify right side
    1,127.95x = 1,031,098.50
  5. Step 5: Solve for x
    x = 1,031,098.50/1,127.95
  6. Step 6: Final answer
    x = 914.13

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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.