Home / 1,975.38-2,725.70-1,178.46

Finding the Fourth Proportional to 1,975.38, 2,725.70 and 1,178.46

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Solution

The fourth proportional to 1,975.38, 2,725.70 and 1,178.46 is: 1,626.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.38 : 2,725.70 = 1,178.46 : x
  2. Step 2: Convert to fraction form
    1,975.38/2,725.70 = 1,178.46/x
  3. Step 3: Cross multiply
    1,975.38x = 2,725.70 × 1,178.46
  4. Step 4: Simplify right side
    1,975.38x = 3,212,128.42
  5. Step 5: Solve for x
    x = 3,212,128.42/1,975.38
  6. Step 6: Final answer
    x = 1,626.08

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1.5x scale

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.