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Finding the Fourth Proportional to 5,988.80, 8,981.60 and 1,828.80

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Solution

The fourth proportional to 5,988.80, 8,981.60 and 1,828.80 is: 2,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,988.80 : 8,981.60 = 1,828.80 : x
  2. Step 2: Convert to fraction form
    5,988.80/8,981.60 = 1,828.80/x
  3. Step 3: Cross multiply
    5,988.80x = 8,981.60 × 1,828.80
  4. Step 4: Simplify right side
    5,988.80x = 16,425,550.08
  5. Step 5: Solve for x
    x = 16,425,550.08/5,988.80
  6. Step 6: Final answer
    x = 2,742.71

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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.