Home / 4,200.39-6,298.79-2,117.79

Finding the Fourth Proportional to 4,200.39, 6,298.79 and 2,117.79

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Solution

The fourth proportional to 4,200.39, 6,298.79 and 2,117.79 is: 3,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.39 : 6,298.79 = 2,117.79 : x
  2. Step 2: Convert to fraction form
    4,200.39/6,298.79 = 2,117.79/x
  3. Step 3: Cross multiply
    4,200.39x = 6,298.79 × 2,117.79
  4. Step 4: Simplify right side
    4,200.39x = 13,339,503.89
  5. Step 5: Solve for x
    x = 13,339,503.89/4,200.39
  6. Step 6: Final answer
    x = 3,175.78

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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.