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Finding the Fourth Proportional to 1,877.04, 2,816.22 and 837.78

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Solution

The fourth proportional to 1,877.04, 2,816.22 and 837.78 is: 1,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.04 : 2,816.22 = 837.78 : x
  2. Step 2: Convert to fraction form
    1,877.04/2,816.22 = 837.78/x
  3. Step 3: Cross multiply
    1,877.04x = 2,816.22 × 837.78
  4. Step 4: Simplify right side
    1,877.04x = 2,359,372.79
  5. Step 5: Solve for x
    x = 2,359,372.79/1,877.04
  6. Step 6: Final answer
    x = 1,256.96

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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.