Home / 2,491.02-3,734.10-2,121.66

Finding the Fourth Proportional to 2,491.02, 3,734.10 and 2,121.66

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Solution

The fourth proportional to 2,491.02, 3,734.10 and 2,121.66 is: 3,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.02 : 3,734.10 = 2,121.66 : x
  2. Step 2: Convert to fraction form
    2,491.02/3,734.10 = 2,121.66/x
  3. Step 3: Cross multiply
    2,491.02x = 3,734.10 × 2,121.66
  4. Step 4: Simplify right side
    2,491.02x = 7,922,490.61
  5. Step 5: Solve for x
    x = 7,922,490.61/2,491.02
  6. Step 6: Final answer
    x = 3,180.42

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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.