Home / 4,219.35-6,332.85-2,140.80

Finding the Fourth Proportional to 4,219.35, 6,332.85 and 2,140.80

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Solution

The fourth proportional to 4,219.35, 6,332.85 and 2,140.80 is: 3,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.35 : 6,332.85 = 2,140.80 : x
  2. Step 2: Convert to fraction form
    4,219.35/6,332.85 = 2,140.80/x
  3. Step 3: Cross multiply
    4,219.35x = 6,332.85 × 2,140.80
  4. Step 4: Simplify right side
    4,219.35x = 13,557,365.28
  5. Step 5: Solve for x
    x = 13,557,365.28/4,219.35
  6. Step 6: Final answer
    x = 3,213.14

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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.