Home / 2,222.19-3,331.40-1,357.11

Finding the Fourth Proportional to 2,222.19, 3,331.40 and 1,357.11

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Solution

The fourth proportional to 2,222.19, 3,331.40 and 1,357.11 is: 2,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.19 : 3,331.40 = 1,357.11 : x
  2. Step 2: Convert to fraction form
    2,222.19/3,331.40 = 1,357.11/x
  3. Step 3: Cross multiply
    2,222.19x = 3,331.40 × 1,357.11
  4. Step 4: Simplify right side
    2,222.19x = 4,521,069.47
  5. Step 5: Solve for x
    x = 4,521,069.47/2,222.19
  6. Step 6: Final answer
    x = 2,034.51

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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.