Home / 4,948.80-7,416.72-2,486.40

Finding the Fourth Proportional to 4,948.80, 7,416.72 and 2,486.40

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Solution

The fourth proportional to 4,948.80, 7,416.72 and 2,486.40 is: 3,726.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.80 : 7,416.72 = 2,486.40 : x
  2. Step 2: Convert to fraction form
    4,948.80/7,416.72 = 2,486.40/x
  3. Step 3: Cross multiply
    4,948.80x = 7,416.72 × 2,486.40
  4. Step 4: Simplify right side
    4,948.80x = 18,440,932.61
  5. Step 5: Solve for x
    x = 18,440,932.61/4,948.80
  6. Step 6: Final answer
    x = 3,726.34

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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.