Home / 3,089.52-4,633.92-1,115.28

Finding the Fourth Proportional to 3,089.52, 4,633.92 and 1,115.28

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Solution

The fourth proportional to 3,089.52, 4,633.92 and 1,115.28 is: 1,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.52 : 4,633.92 = 1,115.28 : x
  2. Step 2: Convert to fraction form
    3,089.52/4,633.92 = 1,115.28/x
  3. Step 3: Cross multiply
    3,089.52x = 4,633.92 × 1,115.28
  4. Step 4: Simplify right side
    3,089.52x = 5,168,118.30
  5. Step 5: Solve for x
    x = 5,168,118.30/3,089.52
  6. Step 6: Final answer
    x = 1,672.79

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1.5x scale

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.