Home / 2,223.70-3,335.20-1,399.45

Finding the Fourth Proportional to 2,223.70, 3,335.20 and 1,399.45

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Solution

The fourth proportional to 2,223.70, 3,335.20 and 1,399.45 is: 2,098.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.70 : 3,335.20 = 1,399.45 : x
  2. Step 2: Convert to fraction form
    2,223.70/3,335.20 = 1,399.45/x
  3. Step 3: Cross multiply
    2,223.70x = 3,335.20 × 1,399.45
  4. Step 4: Simplify right side
    2,223.70x = 4,667,445.64
  5. Step 5: Solve for x
    x = 4,667,445.64/2,223.70
  6. Step 6: Final answer
    x = 2,098.95

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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.