Home / 2,371.84-3,558.32-811.92

Finding the Fourth Proportional to 2,371.84, 3,558.32 and 811.92

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Solution

The fourth proportional to 2,371.84, 3,558.32 and 811.92 is: 1,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.84 : 3,558.32 = 811.92 : x
  2. Step 2: Convert to fraction form
    2,371.84/3,558.32 = 811.92/x
  3. Step 3: Cross multiply
    2,371.84x = 3,558.32 × 811.92
  4. Step 4: Simplify right side
    2,371.84x = 2,889,071.17
  5. Step 5: Solve for x
    x = 2,889,071.17/2,371.84
  6. Step 6: Final answer
    x = 1,218.07

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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.