Home / 1,608.32-2,412.18-867.58

Finding the Fourth Proportional to 1,608.32, 2,412.18 and 867.58

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Solution

The fourth proportional to 1,608.32, 2,412.18 and 867.58 is: 1,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.32 : 2,412.18 = 867.58 : x
  2. Step 2: Convert to fraction form
    1,608.32/2,412.18 = 867.58/x
  3. Step 3: Cross multiply
    1,608.32x = 2,412.18 × 867.58
  4. Step 4: Simplify right side
    1,608.32x = 2,092,761.29
  5. Step 5: Solve for x
    x = 2,092,761.29/1,608.32
  6. Step 6: Final answer
    x = 1,301.21

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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.