Home / 2,670.24-3,679.92-2,079.84

Finding the Fourth Proportional to 2,670.24, 3,679.92 and 2,079.84

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Solution

The fourth proportional to 2,670.24, 3,679.92 and 2,079.84 is: 2,866.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.24 : 3,679.92 = 2,079.84 : x
  2. Step 2: Convert to fraction form
    2,670.24/3,679.92 = 2,079.84/x
  3. Step 3: Cross multiply
    2,670.24x = 3,679.92 × 2,079.84
  4. Step 4: Simplify right side
    2,670.24x = 7,653,644.81
  5. Step 5: Solve for x
    x = 7,653,644.81/2,670.24
  6. Step 6: Final answer
    x = 2,866.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.