Home / 4,986.84-7,470.68-2,788.92

Finding the Fourth Proportional to 4,986.84, 7,470.68 and 2,788.92

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Solution

The fourth proportional to 4,986.84, 7,470.68 and 2,788.92 is: 4,178.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.84 : 7,470.68 = 2,788.92 : x
  2. Step 2: Convert to fraction form
    4,986.84/7,470.68 = 2,788.92/x
  3. Step 3: Cross multiply
    4,986.84x = 7,470.68 × 2,788.92
  4. Step 4: Simplify right side
    4,986.84x = 20,835,128.87
  5. Step 5: Solve for x
    x = 20,835,128.87/4,986.84
  6. Step 6: Final answer
    x = 4,178.02

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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.