Home / 2,991.06-4,122.92-2,360.57

Finding the Fourth Proportional to 2,991.06, 4,122.92 and 2,360.57

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Solution

The fourth proportional to 2,991.06, 4,122.92 and 2,360.57 is: 3,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.06 : 4,122.92 = 2,360.57 : x
  2. Step 2: Convert to fraction form
    2,991.06/4,122.92 = 2,360.57/x
  3. Step 3: Cross multiply
    2,991.06x = 4,122.92 × 2,360.57
  4. Step 4: Simplify right side
    2,991.06x = 9,732,426.55
  5. Step 5: Solve for x
    x = 9,732,426.55/2,991.06
  6. Step 6: Final answer
    x = 3,253.84

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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.