Home / 4,219.78-6,332.10-3,403.30

Finding the Fourth Proportional to 4,219.78, 6,332.10 and 3,403.30

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Solution

The fourth proportional to 4,219.78, 6,332.10 and 3,403.30 is: 5,106.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.78 : 6,332.10 = 3,403.30 : x
  2. Step 2: Convert to fraction form
    4,219.78/6,332.10 = 3,403.30/x
  3. Step 3: Cross multiply
    4,219.78x = 6,332.10 × 3,403.30
  4. Step 4: Simplify right side
    4,219.78x = 21,550,035.93
  5. Step 5: Solve for x
    x = 21,550,035.93/4,219.78
  6. Step 6: Final answer
    x = 5,106.91

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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.