Home / 2,788.47-4,178.61-2,632.65

Finding the Fourth Proportional to 2,788.47, 4,178.61 and 2,632.65

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Solution

The fourth proportional to 2,788.47, 4,178.61 and 2,632.65 is: 3,945.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.47 : 4,178.61 = 2,632.65 : x
  2. Step 2: Convert to fraction form
    2,788.47/4,178.61 = 2,632.65/x
  3. Step 3: Cross multiply
    2,788.47x = 4,178.61 × 2,632.65
  4. Step 4: Simplify right side
    2,788.47x = 11,000,817.62
  5. Step 5: Solve for x
    x = 11,000,817.62/2,788.47
  6. Step 6: Final answer
    x = 3,945.11

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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.