Home / 2,451.80-3,376.08-2,112.82

Finding the Fourth Proportional to 2,451.80, 3,376.08 and 2,112.82

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Solution

The fourth proportional to 2,451.80, 3,376.08 and 2,112.82 is: 2,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.80 : 3,376.08 = 2,112.82 : x
  2. Step 2: Convert to fraction form
    2,451.80/3,376.08 = 2,112.82/x
  3. Step 3: Cross multiply
    2,451.80x = 3,376.08 × 2,112.82
  4. Step 4: Simplify right side
    2,451.80x = 7,133,040.91
  5. Step 5: Solve for x
    x = 7,133,040.91/2,451.80
  6. Step 6: Final answer
    x = 2,909.30

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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.