Home / 1,608.31-2,218.54-945.04

Finding the Fourth Proportional to 1,608.31, 2,218.54 and 945.04

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Solution

The fourth proportional to 1,608.31, 2,218.54 and 945.04 is: 1,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.31 : 2,218.54 = 945.04 : x
  2. Step 2: Convert to fraction form
    1,608.31/2,218.54 = 945.04/x
  3. Step 3: Cross multiply
    1,608.31x = 2,218.54 × 945.04
  4. Step 4: Simplify right side
    1,608.31x = 2,096,609.04
  5. Step 5: Solve for x
    x = 2,096,609.04/1,608.31
  6. Step 6: Final answer
    x = 1,303.61

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1.5x scale

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.