Home / 1,418.34-2,123.66-1,336.47

Finding the Fourth Proportional to 1,418.34, 2,123.66 and 1,336.47

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Solution

The fourth proportional to 1,418.34, 2,123.66 and 1,336.47 is: 2,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.34 : 2,123.66 = 1,336.47 : x
  2. Step 2: Convert to fraction form
    1,418.34/2,123.66 = 1,336.47/x
  3. Step 3: Cross multiply
    1,418.34x = 2,123.66 × 1,336.47
  4. Step 4: Simplify right side
    1,418.34x = 2,838,201.20
  5. Step 5: Solve for x
    x = 2,838,201.20/1,418.34
  6. Step 6: Final answer
    x = 2,001.07

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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.