Home / 1,615.42-2,229.96-1,092.16

Finding the Fourth Proportional to 1,615.42, 2,229.96 and 1,092.16

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Solution

The fourth proportional to 1,615.42, 2,229.96 and 1,092.16 is: 1,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.42 : 2,229.96 = 1,092.16 : x
  2. Step 2: Convert to fraction form
    1,615.42/2,229.96 = 1,092.16/x
  3. Step 3: Cross multiply
    1,615.42x = 2,229.96 × 1,092.16
  4. Step 4: Simplify right side
    1,615.42x = 2,435,473.11
  5. Step 5: Solve for x
    x = 2,435,473.11/1,615.42
  6. Step 6: Final answer
    x = 1,507.64

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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.