Home / 2,219.58-3,061.13-1,335.21

Finding the Fourth Proportional to 2,219.58, 3,061.13 and 1,335.21

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Solution

The fourth proportional to 2,219.58, 3,061.13 and 1,335.21 is: 1,841.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.58 : 3,061.13 = 1,335.21 : x
  2. Step 2: Convert to fraction form
    2,219.58/3,061.13 = 1,335.21/x
  3. Step 3: Cross multiply
    2,219.58x = 3,061.13 × 1,335.21
  4. Step 4: Simplify right side
    2,219.58x = 4,087,251.39
  5. Step 5: Solve for x
    x = 4,087,251.39/2,219.58
  6. Step 6: Final answer
    x = 1,841.45

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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.