Home / 1,974.41-2,724.56-1,228.35

Finding the Fourth Proportional to 1,974.41, 2,724.56 and 1,228.35

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Solution

The fourth proportional to 1,974.41, 2,724.56 and 1,228.35 is: 1,695.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.41 : 2,724.56 = 1,228.35 : x
  2. Step 2: Convert to fraction form
    1,974.41/2,724.56 = 1,228.35/x
  3. Step 3: Cross multiply
    1,974.41x = 2,724.56 × 1,228.35
  4. Step 4: Simplify right side
    1,974.41x = 3,346,707.13
  5. Step 5: Solve for x
    x = 3,346,707.13/1,974.41
  6. Step 6: Final answer
    x = 1,695.05

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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.