Home / 6,101.28-8,420.20-3,448.71

Finding the Fourth Proportional to 6,101.28, 8,420.20 and 3,448.71

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Solution

The fourth proportional to 6,101.28, 8,420.20 and 3,448.71 is: 4,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,101.28 : 8,420.20 = 3,448.71 : x
  2. Step 2: Convert to fraction form
    6,101.28/8,420.20 = 3,448.71/x
  3. Step 3: Cross multiply
    6,101.28x = 8,420.20 × 3,448.71
  4. Step 4: Simplify right side
    6,101.28x = 29,038,819.32
  5. Step 5: Solve for x
    x = 29,038,819.32/6,101.28
  6. Step 6: Final answer
    x = 4,759.46

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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.