Home / 3,420.28-5,126.10-2,954.68

Finding the Fourth Proportional to 3,420.28, 5,126.10 and 2,954.68

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Solution

The fourth proportional to 3,420.28, 5,126.10 and 2,954.68 is: 4,428.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.28 : 5,126.10 = 2,954.68 : x
  2. Step 2: Convert to fraction form
    3,420.28/5,126.10 = 2,954.68/x
  3. Step 3: Cross multiply
    3,420.28x = 5,126.10 × 2,954.68
  4. Step 4: Simplify right side
    3,420.28x = 15,145,985.15
  5. Step 5: Solve for x
    x = 15,145,985.15/3,420.28
  6. Step 6: Final answer
    x = 4,428.29

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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.