Home / 2,784.87-4,178.07-1,553.15

Finding the Fourth Proportional to 2,784.87, 4,178.07 and 1,553.15

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Solution

The fourth proportional to 2,784.87, 4,178.07 and 1,553.15 is: 2,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.87 : 4,178.07 = 1,553.15 : x
  2. Step 2: Convert to fraction form
    2,784.87/4,178.07 = 1,553.15/x
  3. Step 3: Cross multiply
    2,784.87x = 4,178.07 × 1,553.15
  4. Step 4: Simplify right side
    2,784.87x = 6,489,148.53
  5. Step 5: Solve for x
    x = 6,489,148.53/2,784.87
  6. Step 6: Final answer
    x = 2,330.14

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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.