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Finding the Fourth Proportional to 5,152.40, 7,110.23 and 2,914.20

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Solution

The fourth proportional to 5,152.40, 7,110.23 and 2,914.20 is: 4,021.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,152.40 : 7,110.23 = 2,914.20 : x
  2. Step 2: Convert to fraction form
    5,152.40/7,110.23 = 2,914.20/x
  3. Step 3: Cross multiply
    5,152.40x = 7,110.23 × 2,914.20
  4. Step 4: Simplify right side
    5,152.40x = 20,720,617.70
  5. Step 5: Solve for x
    x = 20,720,617.70/5,152.40
  6. Step 6: Final answer
    x = 4,021.55

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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.