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Finding the Fourth Proportional to 2,479.45, 3,718.44 and 1,784.01

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Solution

The fourth proportional to 2,479.45, 3,718.44 and 1,784.01 is: 2,675.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.45 : 3,718.44 = 1,784.01 : x
  2. Step 2: Convert to fraction form
    2,479.45/3,718.44 = 1,784.01/x
  3. Step 3: Cross multiply
    2,479.45x = 3,718.44 × 1,784.01
  4. Step 4: Simplify right side
    2,479.45x = 6,633,734.14
  5. Step 5: Solve for x
    x = 6,633,734.14/2,479.45
  6. Step 6: Final answer
    x = 2,675.49

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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.