Home / 3,089.75-4,633.67-1,115.13

Finding the Fourth Proportional to 3,089.75, 4,633.67 and 1,115.13

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Solution

The fourth proportional to 3,089.75, 4,633.67 and 1,115.13 is: 1,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.75 : 4,633.67 = 1,115.13 : x
  2. Step 2: Convert to fraction form
    3,089.75/4,633.67 = 1,115.13/x
  3. Step 3: Cross multiply
    3,089.75x = 4,633.67 × 1,115.13
  4. Step 4: Simplify right side
    3,089.75x = 5,167,132.84
  5. Step 5: Solve for x
    x = 5,167,132.84/3,089.75
  6. Step 6: Final answer
    x = 1,672.35

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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.