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Finding the Fourth Proportional to 1,554.38, 2,330.95 and 773.81

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Solution

The fourth proportional to 1,554.38, 2,330.95 and 773.81 is: 1,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.38 : 2,330.95 = 773.81 : x
  2. Step 2: Convert to fraction form
    1,554.38/2,330.95 = 773.81/x
  3. Step 3: Cross multiply
    1,554.38x = 2,330.95 × 773.81
  4. Step 4: Simplify right side
    1,554.38x = 1,803,712.42
  5. Step 5: Solve for x
    x = 1,803,712.42/1,554.38
  6. Step 6: Final answer
    x = 1,160.41

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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.