Home / 4,319.42-6,470.53-3,328.78

Finding the Fourth Proportional to 4,319.42, 6,470.53 and 3,328.78

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Solution

The fourth proportional to 4,319.42, 6,470.53 and 3,328.78 is: 4,986.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.42 : 6,470.53 = 3,328.78 : x
  2. Step 2: Convert to fraction form
    4,319.42/6,470.53 = 3,328.78/x
  3. Step 3: Cross multiply
    4,319.42x = 6,470.53 × 3,328.78
  4. Step 4: Simplify right side
    4,319.42x = 21,538,921.86
  5. Step 5: Solve for x
    x = 21,538,921.86/4,319.42
  6. Step 6: Final answer
    x = 4,986.53

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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.