Home / 1,955.45-2,698.58-1,071.34

Finding the Fourth Proportional to 1,955.45, 2,698.58 and 1,071.34

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Solution

The fourth proportional to 1,955.45, 2,698.58 and 1,071.34 is: 1,478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.45 : 2,698.58 = 1,071.34 : x
  2. Step 2: Convert to fraction form
    1,955.45/2,698.58 = 1,071.34/x
  3. Step 3: Cross multiply
    1,955.45x = 2,698.58 × 1,071.34
  4. Step 4: Simplify right side
    1,955.45x = 2,891,096.70
  5. Step 5: Solve for x
    x = 2,891,096.70/1,955.45
  6. Step 6: Final answer
    x = 1,478.48

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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.