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Finding the Fourth Proportional to 3,636.40, 5,012.40 and 2,849.08

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Solution

The fourth proportional to 3,636.40, 5,012.40 and 2,849.08 is: 3,927.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.40 : 5,012.40 = 2,849.08 : x
  2. Step 2: Convert to fraction form
    3,636.40/5,012.40 = 2,849.08/x
  3. Step 3: Cross multiply
    3,636.40x = 5,012.40 × 2,849.08
  4. Step 4: Simplify right side
    3,636.40x = 14,280,728.59
  5. Step 5: Solve for x
    x = 14,280,728.59/3,636.40
  6. Step 6: Final answer
    x = 3,927.16

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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.