Home / 4,248.89-6,398.78-3,870.12

Finding the Fourth Proportional to 4,248.89, 6,398.78 and 3,870.12

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Solution

The fourth proportional to 4,248.89, 6,398.78 and 3,870.12 is: 5,828.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,248.89 : 6,398.78 = 3,870.12 : x
  2. Step 2: Convert to fraction form
    4,248.89/6,398.78 = 3,870.12/x
  3. Step 3: Cross multiply
    4,248.89x = 6,398.78 × 3,870.12
  4. Step 4: Simplify right side
    4,248.89x = 24,764,046.45
  5. Step 5: Solve for x
    x = 24,764,046.45/4,248.89
  6. Step 6: Final answer
    x = 5,828.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.