Home / 4,208.88-6,314.38-1,397.90

Finding the Fourth Proportional to 4,208.88, 6,314.38 and 1,397.90

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Solution

The fourth proportional to 4,208.88, 6,314.38 and 1,397.90 is: 2,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,208.88 : 6,314.38 = 1,397.90 : x
  2. Step 2: Convert to fraction form
    4,208.88/6,314.38 = 1,397.90/x
  3. Step 3: Cross multiply
    4,208.88x = 6,314.38 × 1,397.90
  4. Step 4: Simplify right side
    4,208.88x = 8,826,871.80
  5. Step 5: Solve for x
    x = 8,826,871.80/4,208.88
  6. Step 6: Final answer
    x = 2,097.20

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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.