Home / 1,111.56-1,667.33-1,043.90

Finding the Fourth Proportional to 1,111.56, 1,667.33 and 1,043.90

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Solution

The fourth proportional to 1,111.56, 1,667.33 and 1,043.90 is: 1,565.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111.56 : 1,667.33 = 1,043.90 : x
  2. Step 2: Convert to fraction form
    1,111.56/1,667.33 = 1,043.90/x
  3. Step 3: Cross multiply
    1,111.56x = 1,667.33 × 1,043.90
  4. Step 4: Simplify right side
    1,111.56x = 1,740,512.23
  5. Step 5: Solve for x
    x = 1,740,512.23/1,111.56
  6. Step 6: Final answer
    x = 1,565.83

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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.