Home / 4,321.29-6,478.16-3,667.40

Finding the Fourth Proportional to 4,321.29, 6,478.16 and 3,667.40

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Solution

The fourth proportional to 4,321.29, 6,478.16 and 3,667.40 is: 5,497.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.29 : 6,478.16 = 3,667.40 : x
  2. Step 2: Convert to fraction form
    4,321.29/6,478.16 = 3,667.40/x
  3. Step 3: Cross multiply
    4,321.29x = 6,478.16 × 3,667.40
  4. Step 4: Simplify right side
    4,321.29x = 23,757,953.26
  5. Step 5: Solve for x
    x = 23,757,953.26/4,321.29
  6. Step 6: Final answer
    x = 5,497.88

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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.