Home / 1,204.28-1,661.40-942.92

Finding the Fourth Proportional to 1,204.28, 1,661.40 and 942.92

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Solution

The fourth proportional to 1,204.28, 1,661.40 and 942.92 is: 1,300.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.28 : 1,661.40 = 942.92 : x
  2. Step 2: Convert to fraction form
    1,204.28/1,661.40 = 942.92/x
  3. Step 3: Cross multiply
    1,204.28x = 1,661.40 × 942.92
  4. Step 4: Simplify right side
    1,204.28x = 1,566,567.29
  5. Step 5: Solve for x
    x = 1,566,567.29/1,204.28
  6. Step 6: Final answer
    x = 1,300.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.