Home / 1,955.39-2,698.44-1,071.17

Finding the Fourth Proportional to 1,955.39, 2,698.44 and 1,071.17

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Solution

The fourth proportional to 1,955.39, 2,698.44 and 1,071.17 is: 1,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.39 : 2,698.44 = 1,071.17 : x
  2. Step 2: Convert to fraction form
    1,955.39/2,698.44 = 1,071.17/x
  3. Step 3: Cross multiply
    1,955.39x = 2,698.44 × 1,071.17
  4. Step 4: Simplify right side
    1,955.39x = 2,890,498.78
  5. Step 5: Solve for x
    x = 2,890,498.78/1,955.39
  6. Step 6: Final answer
    x = 1,478.22

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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.