Home / 1,253.02-1,877.10-1,149.75

Finding the Fourth Proportional to 1,253.02, 1,877.10 and 1,149.75

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Solution

The fourth proportional to 1,253.02, 1,877.10 and 1,149.75 is: 1,722.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.02 : 1,877.10 = 1,149.75 : x
  2. Step 2: Convert to fraction form
    1,253.02/1,877.10 = 1,149.75/x
  3. Step 3: Cross multiply
    1,253.02x = 1,877.10 × 1,149.75
  4. Step 4: Simplify right side
    1,253.02x = 2,158,186.34
  5. Step 5: Solve for x
    x = 2,158,186.34/1,253.02
  6. Step 6: Final answer
    x = 1,722.39

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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.