Home / 3,118.84-4,681.19-2,079.57

Finding the Fourth Proportional to 3,118.84, 4,681.19 and 2,079.57

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Solution

The fourth proportional to 3,118.84, 4,681.19 and 2,079.57 is: 3,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.84 : 4,681.19 = 2,079.57 : x
  2. Step 2: Convert to fraction form
    3,118.84/4,681.19 = 2,079.57/x
  3. Step 3: Cross multiply
    3,118.84x = 4,681.19 × 2,079.57
  4. Step 4: Simplify right side
    3,118.84x = 9,734,862.29
  5. Step 5: Solve for x
    x = 9,734,862.29/3,118.84
  6. Step 6: Final answer
    x = 3,121.31

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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.