Home / 3,213.74-4,818.28-2,171.16

Finding the Fourth Proportional to 3,213.74, 4,818.28 and 2,171.16

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Solution

The fourth proportional to 3,213.74, 4,818.28 and 2,171.16 is: 3,255.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.74 : 4,818.28 = 2,171.16 : x
  2. Step 2: Convert to fraction form
    3,213.74/4,818.28 = 2,171.16/x
  3. Step 3: Cross multiply
    3,213.74x = 4,818.28 × 2,171.16
  4. Step 4: Simplify right side
    3,213.74x = 10,461,256.80
  5. Step 5: Solve for x
    x = 10,461,256.80/3,213.74
  6. Step 6: Final answer
    x = 3,255.17

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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.