Home / 2,152.17-3,228.75-613.17

Finding the Fourth Proportional to 2,152.17, 3,228.75 and 613.17

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Solution

The fourth proportional to 2,152.17, 3,228.75 and 613.17 is: 919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.17 : 3,228.75 = 613.17 : x
  2. Step 2: Convert to fraction form
    2,152.17/3,228.75 = 613.17/x
  3. Step 3: Cross multiply
    2,152.17x = 3,228.75 × 613.17
  4. Step 4: Simplify right side
    2,152.17x = 1,979,772.64
  5. Step 5: Solve for x
    x = 1,979,772.64/2,152.17
  6. Step 6: Final answer
    x = 919.90

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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.