Home / 3,748.05-5,172.30-2,069.45

Finding the Fourth Proportional to 3,748.05, 5,172.30 and 2,069.45

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Solution

The fourth proportional to 3,748.05, 5,172.30 and 2,069.45 is: 2,855.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.05 : 5,172.30 = 2,069.45 : x
  2. Step 2: Convert to fraction form
    3,748.05/5,172.30 = 2,069.45/x
  3. Step 3: Cross multiply
    3,748.05x = 5,172.30 × 2,069.45
  4. Step 4: Simplify right side
    3,748.05x = 10,703,816.24
  5. Step 5: Solve for x
    x = 10,703,816.24/3,748.05
  6. Step 6: Final answer
    x = 2,855.84

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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.