Home / 3,172.60-4,376.71-2,053.90

Finding the Fourth Proportional to 3,172.60, 4,376.71 and 2,053.90

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Solution

The fourth proportional to 3,172.60, 4,376.71 and 2,053.90 is: 2,833.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.60 : 4,376.71 = 2,053.90 : x
  2. Step 2: Convert to fraction form
    3,172.60/4,376.71 = 2,053.90/x
  3. Step 3: Cross multiply
    3,172.60x = 4,376.71 × 2,053.90
  4. Step 4: Simplify right side
    3,172.60x = 8,989,324.67
  5. Step 5: Solve for x
    x = 8,989,324.67/3,172.60
  6. Step 6: Final answer
    x = 2,833.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.