Home / 1,565.68-2,161.20-945.04

Finding the Fourth Proportional to 1,565.68, 2,161.20 and 945.04

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Solution

The fourth proportional to 1,565.68, 2,161.20 and 945.04 is: 1,304.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.68 : 2,161.20 = 945.04 : x
  2. Step 2: Convert to fraction form
    1,565.68/2,161.20 = 945.04/x
  3. Step 3: Cross multiply
    1,565.68x = 2,161.20 × 945.04
  4. Step 4: Simplify right side
    1,565.68x = 2,042,420.45
  5. Step 5: Solve for x
    x = 2,042,420.45/1,565.68
  6. Step 6: Final answer
    x = 1,304.49

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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.