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Finding the Fourth Proportional to 5,212.40, 7,193.04 and 2,854.40

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Solution

The fourth proportional to 5,212.40, 7,193.04 and 2,854.40 is: 3,939.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.40 : 7,193.04 = 2,854.40 : x
  2. Step 2: Convert to fraction form
    5,212.40/7,193.04 = 2,854.40/x
  3. Step 3: Cross multiply
    5,212.40x = 7,193.04 × 2,854.40
  4. Step 4: Simplify right side
    5,212.40x = 20,531,813.38
  5. Step 5: Solve for x
    x = 20,531,813.38/5,212.40
  6. Step 6: Final answer
    x = 3,939.03

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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.