Home / 6,951.42-10,420.65-3,439.26

Finding the Fourth Proportional to 6,951.42, 10,420.65 and 3,439.26

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Solution

The fourth proportional to 6,951.42, 10,420.65 and 3,439.26 is: 5,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,951.42 : 10,420.65 = 3,439.26 : x
  2. Step 2: Convert to fraction form
    6,951.42/10,420.65 = 3,439.26/x
  3. Step 3: Cross multiply
    6,951.42x = 10,420.65 × 3,439.26
  4. Step 4: Simplify right side
    6,951.42x = 35,839,324.72
  5. Step 5: Solve for x
    x = 35,839,324.72/6,951.42
  6. Step 6: Final answer
    x = 5,155.68

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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.