Home / 2,653.08-3,979.62-1,679.46

Finding the Fourth Proportional to 2,653.08, 3,979.62 and 1,679.46

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Solution

The fourth proportional to 2,653.08, 3,979.62 and 1,679.46 is: 2,519.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.08 : 3,979.62 = 1,679.46 : x
  2. Step 2: Convert to fraction form
    2,653.08/3,979.62 = 1,679.46/x
  3. Step 3: Cross multiply
    2,653.08x = 3,979.62 × 1,679.46
  4. Step 4: Simplify right side
    2,653.08x = 6,683,612.61
  5. Step 5: Solve for x
    x = 6,683,612.61/2,653.08
  6. Step 6: Final answer
    x = 2,519.19

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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.