Home / 2,223.90-3,340.80-1,859.40

Finding the Fourth Proportional to 2,223.90, 3,340.80 and 1,859.40

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Solution

The fourth proportional to 2,223.90, 3,340.80 and 1,859.40 is: 2,793.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.90 : 3,340.80 = 1,859.40 : x
  2. Step 2: Convert to fraction form
    2,223.90/3,340.80 = 1,859.40/x
  3. Step 3: Cross multiply
    2,223.90x = 3,340.80 × 1,859.40
  4. Step 4: Simplify right side
    2,223.90x = 6,211,883.52
  5. Step 5: Solve for x
    x = 6,211,883.52/2,223.90
  6. Step 6: Final answer
    x = 2,793.24

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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.