Home / 5,624.75-8,432.55-2,112.80

Finding the Fourth Proportional to 5,624.75, 8,432.55 and 2,112.80

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Solution

The fourth proportional to 5,624.75, 8,432.55 and 2,112.80 is: 3,167.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,624.75 : 8,432.55 = 2,112.80 : x
  2. Step 2: Convert to fraction form
    5,624.75/8,432.55 = 2,112.80/x
  3. Step 3: Cross multiply
    5,624.75x = 8,432.55 × 2,112.80
  4. Step 4: Simplify right side
    5,624.75x = 17,816,291.64
  5. Step 5: Solve for x
    x = 17,816,291.64/5,624.75
  6. Step 6: Final answer
    x = 3,167.48

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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.