Home / 4,005.86-5,521.48-2,679.08

Finding the Fourth Proportional to 4,005.86, 5,521.48 and 2,679.08

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Solution

The fourth proportional to 4,005.86, 5,521.48 and 2,679.08 is: 3,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005.86 : 5,521.48 = 2,679.08 : x
  2. Step 2: Convert to fraction form
    4,005.86/5,521.48 = 2,679.08/x
  3. Step 3: Cross multiply
    4,005.86x = 5,521.48 × 2,679.08
  4. Step 4: Simplify right side
    4,005.86x = 14,792,473.24
  5. Step 5: Solve for x
    x = 14,792,473.24/4,005.86
  6. Step 6: Final answer
    x = 3,692.71

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1.5x scale

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.