Home / 3,213.15-4,432.45-2,616.32

Finding the Fourth Proportional to 3,213.15, 4,432.45 and 2,616.32

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Solution

The fourth proportional to 3,213.15, 4,432.45 and 2,616.32 is: 3,609.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.15 : 4,432.45 = 2,616.32 : x
  2. Step 2: Convert to fraction form
    3,213.15/4,432.45 = 2,616.32/x
  3. Step 3: Cross multiply
    3,213.15x = 4,432.45 × 2,616.32
  4. Step 4: Simplify right side
    3,213.15x = 11,596,710.65
  5. Step 5: Solve for x
    x = 11,596,710.65/3,213.15
  6. Step 6: Final answer
    x = 3,609.14

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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.