Home / 2,240.94-3,338.89-2,115.19

Finding the Fourth Proportional to 2,240.94, 3,338.89 and 2,115.19

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Solution

The fourth proportional to 2,240.94, 3,338.89 and 2,115.19 is: 3,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.94 : 3,338.89 = 2,115.19 : x
  2. Step 2: Convert to fraction form
    2,240.94/3,338.89 = 2,115.19/x
  3. Step 3: Cross multiply
    2,240.94x = 3,338.89 × 2,115.19
  4. Step 4: Simplify right side
    2,240.94x = 7,062,386.74
  5. Step 5: Solve for x
    x = 7,062,386.74/2,240.94
  6. Step 6: Final answer
    x = 3,151.53

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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.