Home / 2,343.50-3,216.17-2,121.96

Finding the Fourth Proportional to 2,343.50, 3,216.17 and 2,121.96

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Solution

The fourth proportional to 2,343.50, 3,216.17 and 2,121.96 is: 2,912.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.50 : 3,216.17 = 2,121.96 : x
  2. Step 2: Convert to fraction form
    2,343.50/3,216.17 = 2,121.96/x
  3. Step 3: Cross multiply
    2,343.50x = 3,216.17 × 2,121.96
  4. Step 4: Simplify right side
    2,343.50x = 6,824,573.48
  5. Step 5: Solve for x
    x = 6,824,573.48/2,343.50
  6. Step 6: Final answer
    x = 2,912.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.