Home / 6,972.75-9,621.45-4,285.17

Finding the Fourth Proportional to 6,972.75, 9,621.45 and 4,285.17

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Solution

The fourth proportional to 6,972.75, 9,621.45 and 4,285.17 is: 5,912.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.75 : 9,621.45 = 4,285.17 : x
  2. Step 2: Convert to fraction form
    6,972.75/9,621.45 = 4,285.17/x
  3. Step 3: Cross multiply
    6,972.75x = 9,621.45 × 4,285.17
  4. Step 4: Simplify right side
    6,972.75x = 41,229,548.90
  5. Step 5: Solve for x
    x = 41,229,548.90/6,972.75
  6. Step 6: Final answer
    x = 5,912.95

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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.