Home / 3,055.40-4,215.78-2,299.97

Finding the Fourth Proportional to 3,055.40, 4,215.78 and 2,299.97

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Solution

The fourth proportional to 3,055.40, 4,215.78 and 2,299.97 is: 3,173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.40 : 4,215.78 = 2,299.97 : x
  2. Step 2: Convert to fraction form
    3,055.40/4,215.78 = 2,299.97/x
  3. Step 3: Cross multiply
    3,055.40x = 4,215.78 × 2,299.97
  4. Step 4: Simplify right side
    3,055.40x = 9,696,175.91
  5. Step 5: Solve for x
    x = 9,696,175.91/3,055.40
  6. Step 6: Final answer
    x = 3,173.46

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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.