Home / 2,816.60-4,223.62-1,172.17

Finding the Fourth Proportional to 2,816.60, 4,223.62 and 1,172.17

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Solution

The fourth proportional to 2,816.60, 4,223.62 and 1,172.17 is: 1,757.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.60 : 4,223.62 = 1,172.17 : x
  2. Step 2: Convert to fraction form
    2,816.60/4,223.62 = 1,172.17/x
  3. Step 3: Cross multiply
    2,816.60x = 4,223.62 × 1,172.17
  4. Step 4: Simplify right side
    2,816.60x = 4,950,787.17
  5. Step 5: Solve for x
    x = 4,950,787.17/2,816.60
  6. Step 6: Final answer
    x = 1,757.72

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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.