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Finding the Fourth Proportional to 1,095.63, 1,510.76 and 814.97

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Solution

The fourth proportional to 1,095.63, 1,510.76 and 814.97 is: 1,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.63 : 1,510.76 = 814.97 : x
  2. Step 2: Convert to fraction form
    1,095.63/1,510.76 = 814.97/x
  3. Step 3: Cross multiply
    1,095.63x = 1,510.76 × 814.97
  4. Step 4: Simplify right side
    1,095.63x = 1,231,212.45
  5. Step 5: Solve for x
    x = 1,231,212.45/1,095.63
  6. Step 6: Final answer
    x = 1,123.75

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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.