Home / 1,218.43-1,827.65-1,101.79

Finding the Fourth Proportional to 1,218.43, 1,827.65 and 1,101.79

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Solution

The fourth proportional to 1,218.43, 1,827.65 and 1,101.79 is: 1,652.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218.43 : 1,827.65 = 1,101.79 : x
  2. Step 2: Convert to fraction form
    1,218.43/1,827.65 = 1,101.79/x
  3. Step 3: Cross multiply
    1,218.43x = 1,827.65 × 1,101.79
  4. Step 4: Simplify right side
    1,218.43x = 2,013,686.49
  5. Step 5: Solve for x
    x = 2,013,686.49/1,218.43
  6. Step 6: Final answer
    x = 1,652.69

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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.