Home / 1,975.13-2,728.89-1,955.69

Finding the Fourth Proportional to 1,975.13, 2,728.89 and 1,955.69

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Solution

The fourth proportional to 1,975.13, 2,728.89 and 1,955.69 is: 2,702.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.13 : 2,728.89 = 1,955.69 : x
  2. Step 2: Convert to fraction form
    1,975.13/2,728.89 = 1,955.69/x
  3. Step 3: Cross multiply
    1,975.13x = 2,728.89 × 1,955.69
  4. Step 4: Simplify right side
    1,975.13x = 5,336,874.82
  5. Step 5: Solve for x
    x = 5,336,874.82/1,975.13
  6. Step 6: Final answer
    x = 2,702.03

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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.