Home / 4,213.40-6,320-1,872.77

Finding the Fourth Proportional to 4,213.40, 6,320 and 1,872.77

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Solution

The fourth proportional to 4,213.40, 6,320 and 1,872.77 is: 2,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.40 : 6,320 = 1,872.77 : x
  2. Step 2: Convert to fraction form
    4,213.40/6,320 = 1,872.77/x
  3. Step 3: Cross multiply
    4,213.40x = 6,320 × 1,872.77
  4. Step 4: Simplify right side
    4,213.40x = 11,835,906.40
  5. Step 5: Solve for x
    x = 11,835,906.40/4,213.40
  6. Step 6: Final answer
    x = 2,809.11

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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.