Home / 3,748.12-5,172.70-2,069.68

Finding the Fourth Proportional to 3,748.12, 5,172.70 and 2,069.68

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Solution

The fourth proportional to 3,748.12, 5,172.70 and 2,069.68 is: 2,856.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.12 : 5,172.70 = 2,069.68 : x
  2. Step 2: Convert to fraction form
    3,748.12/5,172.70 = 2,069.68/x
  3. Step 3: Cross multiply
    3,748.12x = 5,172.70 × 2,069.68
  4. Step 4: Simplify right side
    3,748.12x = 10,705,833.74
  5. Step 5: Solve for x
    x = 10,705,833.74/3,748.12
  6. Step 6: Final answer
    x = 2,856.32

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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.