Home / 2,212.52-3,312.36-1,724.09

Finding the Fourth Proportional to 2,212.52, 3,312.36 and 1,724.09

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Solution

The fourth proportional to 2,212.52, 3,312.36 and 1,724.09 is: 2,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.52 : 3,312.36 = 1,724.09 : x
  2. Step 2: Convert to fraction form
    2,212.52/3,312.36 = 1,724.09/x
  3. Step 3: Cross multiply
    2,212.52x = 3,312.36 × 1,724.09
  4. Step 4: Simplify right side
    2,212.52x = 5,710,790.19
  5. Step 5: Solve for x
    x = 5,710,790.19/2,212.52
  6. Step 6: Final answer
    x = 2,581.13

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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.