Home / 6,901.20-10,362.60-3,985.20

Finding the Fourth Proportional to 6,901.20, 10,362.60 and 3,985.20

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Solution

The fourth proportional to 6,901.20, 10,362.60 and 3,985.20 is: 5,984.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,901.20 : 10,362.60 = 3,985.20 : x
  2. Step 2: Convert to fraction form
    6,901.20/10,362.60 = 3,985.20/x
  3. Step 3: Cross multiply
    6,901.20x = 10,362.60 × 3,985.20
  4. Step 4: Simplify right side
    6,901.20x = 41,297,033.52
  5. Step 5: Solve for x
    x = 41,297,033.52/6,901.20
  6. Step 6: Final answer
    x = 5,984.04

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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.