Home / 2,242.75-3,342.40-2,126.11

Finding the Fourth Proportional to 2,242.75, 3,342.40 and 2,126.11

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Solution

The fourth proportional to 2,242.75, 3,342.40 and 2,126.11 is: 3,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,242.75 : 3,342.40 = 2,126.11 : x
  2. Step 2: Convert to fraction form
    2,242.75/3,342.40 = 2,126.11/x
  3. Step 3: Cross multiply
    2,242.75x = 3,342.40 × 2,126.11
  4. Step 4: Simplify right side
    2,242.75x = 7,106,310.06
  5. Step 5: Solve for x
    x = 7,106,310.06/2,242.75
  6. Step 6: Final answer
    x = 3,168.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.