Home / 1,872.81-2,584.62-1,377.72

Finding the Fourth Proportional to 1,872.81, 2,584.62 and 1,377.72

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Solution

The fourth proportional to 1,872.81, 2,584.62 and 1,377.72 is: 1,901.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.81 : 2,584.62 = 1,377.72 : x
  2. Step 2: Convert to fraction form
    1,872.81/2,584.62 = 1,377.72/x
  3. Step 3: Cross multiply
    1,872.81x = 2,584.62 × 1,377.72
  4. Step 4: Simplify right side
    1,872.81x = 3,560,882.67
  5. Step 5: Solve for x
    x = 3,560,882.67/1,872.81
  6. Step 6: Final answer
    x = 1,901.36

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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.