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Finding the Fourth Proportional to 3,244.68, 4,478.22 and 3,136.68

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Solution

The fourth proportional to 3,244.68, 4,478.22 and 3,136.68 is: 4,329.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,244.68 : 4,478.22 = 3,136.68 : x
  2. Step 2: Convert to fraction form
    3,244.68/4,478.22 = 3,136.68/x
  3. Step 3: Cross multiply
    3,244.68x = 4,478.22 × 3,136.68
  4. Step 4: Simplify right side
    3,244.68x = 14,046,743.11
  5. Step 5: Solve for x
    x = 14,046,743.11/3,244.68
  6. Step 6: Final answer
    x = 4,329.16

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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.