Home / 4,280.24-5,909.96-3,219.55

Finding the Fourth Proportional to 4,280.24, 5,909.96 and 3,219.55

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Solution

The fourth proportional to 4,280.24, 5,909.96 and 3,219.55 is: 4,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.24 : 5,909.96 = 3,219.55 : x
  2. Step 2: Convert to fraction form
    4,280.24/5,909.96 = 3,219.55/x
  3. Step 3: Cross multiply
    4,280.24x = 5,909.96 × 3,219.55
  4. Step 4: Simplify right side
    4,280.24x = 19,027,404.99
  5. Step 5: Solve for x
    x = 19,027,404.99/4,280.24
  6. Step 6: Final answer
    x = 4,445.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.