Home / 3,712.17-5,563.44-2,780.40

Finding the Fourth Proportional to 3,712.17, 5,563.44 and 2,780.40

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Solution

The fourth proportional to 3,712.17, 5,563.44 and 2,780.40 is: 4,166.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.17 : 5,563.44 = 2,780.40 : x
  2. Step 2: Convert to fraction form
    3,712.17/5,563.44 = 2,780.40/x
  3. Step 3: Cross multiply
    3,712.17x = 5,563.44 × 2,780.40
  4. Step 4: Simplify right side
    3,712.17x = 15,468,588.58
  5. Step 5: Solve for x
    x = 15,468,588.58/3,712.17
  6. Step 6: Final answer
    x = 4,166.99

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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.