Home / 3,169.60-4,376.40-2,051.20

Finding the Fourth Proportional to 3,169.60, 4,376.40 and 2,051.20

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Solution

The fourth proportional to 3,169.60, 4,376.40 and 2,051.20 is: 2,832.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.60 : 4,376.40 = 2,051.20 : x
  2. Step 2: Convert to fraction form
    3,169.60/4,376.40 = 2,051.20/x
  3. Step 3: Cross multiply
    3,169.60x = 4,376.40 × 2,051.20
  4. Step 4: Simplify right side
    3,169.60x = 8,976,871.68
  5. Step 5: Solve for x
    x = 8,976,871.68/3,169.60
  6. Step 6: Final answer
    x = 2,832.18

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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.