Home / 1,383.42-2,064.80-1,159.86

Finding the Fourth Proportional to 1,383.42, 2,064.80 and 1,159.86

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Solution

The fourth proportional to 1,383.42, 2,064.80 and 1,159.86 is: 1,731.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.42 : 2,064.80 = 1,159.86 : x
  2. Step 2: Convert to fraction form
    1,383.42/2,064.80 = 1,159.86/x
  3. Step 3: Cross multiply
    1,383.42x = 2,064.80 × 1,159.86
  4. Step 4: Simplify right side
    1,383.42x = 2,394,873.13
  5. Step 5: Solve for x
    x = 2,394,873.13/1,383.42
  6. Step 6: Final answer
    x = 1,731.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.