Home / 1,955.33-2,698.28-1,071.12

Finding the Fourth Proportional to 1,955.33, 2,698.28 and 1,071.12

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Solution

The fourth proportional to 1,955.33, 2,698.28 and 1,071.12 is: 1,478.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.33 : 2,698.28 = 1,071.12 : x
  2. Step 2: Convert to fraction form
    1,955.33/2,698.28 = 1,071.12/x
  3. Step 3: Cross multiply
    1,955.33x = 2,698.28 × 1,071.12
  4. Step 4: Simplify right side
    1,955.33x = 2,890,181.67
  5. Step 5: Solve for x
    x = 2,890,181.67/1,955.33
  6. Step 6: Final answer
    x = 1,478.11

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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.