Home / 5,478.52-8,219.85-3,288.77

Finding the Fourth Proportional to 5,478.52, 8,219.85 and 3,288.77

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Solution

The fourth proportional to 5,478.52, 8,219.85 and 3,288.77 is: 4,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.52 : 8,219.85 = 3,288.77 : x
  2. Step 2: Convert to fraction form
    5,478.52/8,219.85 = 3,288.77/x
  3. Step 3: Cross multiply
    5,478.52x = 8,219.85 × 3,288.77
  4. Step 4: Simplify right side
    5,478.52x = 27,033,204.30
  5. Step 5: Solve for x
    x = 27,033,204.30/5,478.52
  6. Step 6: Final answer
    x = 4,934.40

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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.