Home / 2,807.61-3,878.73-2,392.29

Finding the Fourth Proportional to 2,807.61, 3,878.73 and 2,392.29

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Solution

The fourth proportional to 2,807.61, 3,878.73 and 2,392.29 is: 3,304.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.61 : 3,878.73 = 2,392.29 : x
  2. Step 2: Convert to fraction form
    2,807.61/3,878.73 = 2,392.29/x
  3. Step 3: Cross multiply
    2,807.61x = 3,878.73 × 2,392.29
  4. Step 4: Simplify right side
    2,807.61x = 9,279,046.99
  5. Step 5: Solve for x
    x = 9,279,046.99/2,807.61
  6. Step 6: Final answer
    x = 3,304.96

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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.