Home / 1,975.18-2,725.33-1,178.29

Finding the Fourth Proportional to 1,975.18, 2,725.33 and 1,178.29

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Solution

The fourth proportional to 1,975.18, 2,725.33 and 1,178.29 is: 1,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.18 : 2,725.33 = 1,178.29 : x
  2. Step 2: Convert to fraction form
    1,975.18/2,725.33 = 1,178.29/x
  3. Step 3: Cross multiply
    1,975.18x = 2,725.33 × 1,178.29
  4. Step 4: Simplify right side
    1,975.18x = 3,211,223.19
  5. Step 5: Solve for x
    x = 3,211,223.19/1,975.18
  6. Step 6: Final answer
    x = 1,625.79

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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.