Home / 3,420.38-5,126.99-1,937.75

Finding the Fourth Proportional to 3,420.38, 5,126.99 and 1,937.75

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Solution

The fourth proportional to 3,420.38, 5,126.99 and 1,937.75 is: 2,904.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.38 : 5,126.99 = 1,937.75 : x
  2. Step 2: Convert to fraction form
    3,420.38/5,126.99 = 1,937.75/x
  3. Step 3: Cross multiply
    3,420.38x = 5,126.99 × 1,937.75
  4. Step 4: Simplify right side
    3,420.38x = 9,934,824.87
  5. Step 5: Solve for x
    x = 9,934,824.87/3,420.38
  6. Step 6: Final answer
    x = 2,904.60

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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.