Home / 3,116.70-4,664.25-2,987.55

Finding the Fourth Proportional to 3,116.70, 4,664.25 and 2,987.55

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Solution

The fourth proportional to 3,116.70, 4,664.25 and 2,987.55 is: 4,470.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.70 : 4,664.25 = 2,987.55 : x
  2. Step 2: Convert to fraction form
    3,116.70/4,664.25 = 2,987.55/x
  3. Step 3: Cross multiply
    3,116.70x = 4,664.25 × 2,987.55
  4. Step 4: Simplify right side
    3,116.70x = 13,934,680.09
  5. Step 5: Solve for x
    x = 13,934,680.09/3,116.70
  6. Step 6: Final answer
    x = 4,470.97

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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.