Home / 3,503.40-5,247.54-2,938.20

Finding the Fourth Proportional to 3,503.40, 5,247.54 and 2,938.20

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Solution

The fourth proportional to 3,503.40, 5,247.54 and 2,938.20 is: 4,400.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.40 : 5,247.54 = 2,938.20 : x
  2. Step 2: Convert to fraction form
    3,503.40/5,247.54 = 2,938.20/x
  3. Step 3: Cross multiply
    3,503.40x = 5,247.54 × 2,938.20
  4. Step 4: Simplify right side
    3,503.40x = 15,418,322.03
  5. Step 5: Solve for x
    x = 15,418,322.03/3,503.40
  6. Step 6: Final answer
    x = 4,400.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.