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Finding the Fourth Proportional to 1,377.07, 2,066.46 and 544.84

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Solution

The fourth proportional to 1,377.07, 2,066.46 and 544.84 is: 817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.07 : 2,066.46 = 544.84 : x
  2. Step 2: Convert to fraction form
    1,377.07/2,066.46 = 544.84/x
  3. Step 3: Cross multiply
    1,377.07x = 2,066.46 × 544.84
  4. Step 4: Simplify right side
    1,377.07x = 1,125,890.07
  5. Step 5: Solve for x
    x = 1,125,890.07/1,377.07
  6. Step 6: Final answer
    x = 817.60

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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.