Home / 1,600.32-2,399.28-1,111.92

Finding the Fourth Proportional to 1,600.32, 2,399.28 and 1,111.92

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Solution

The fourth proportional to 1,600.32, 2,399.28 and 1,111.92 is: 1,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.32 : 2,399.28 = 1,111.92 : x
  2. Step 2: Convert to fraction form
    1,600.32/2,399.28 = 1,111.92/x
  3. Step 3: Cross multiply
    1,600.32x = 2,399.28 × 1,111.92
  4. Step 4: Simplify right side
    1,600.32x = 2,667,807.42
  5. Step 5: Solve for x
    x = 2,667,807.42/1,600.32
  6. Step 6: Final answer
    x = 1,667.05

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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.