Home / 5,528.80-8,278.80-5,269.60

Finding the Fourth Proportional to 5,528.80, 8,278.80 and 5,269.60

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Solution

The fourth proportional to 5,528.80, 8,278.80 and 5,269.60 is: 7,890.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.80 : 8,278.80 = 5,269.60 : x
  2. Step 2: Convert to fraction form
    5,528.80/8,278.80 = 5,269.60/x
  3. Step 3: Cross multiply
    5,528.80x = 8,278.80 × 5,269.60
  4. Step 4: Simplify right side
    5,528.80x = 43,625,964.48
  5. Step 5: Solve for x
    x = 43,625,964.48/5,528.80
  6. Step 6: Final answer
    x = 7,890.68

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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.