Home / 1,376.37-2,065.14-1,251.21

Finding the Fourth Proportional to 1,376.37, 2,065.14 and 1,251.21

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Solution

The fourth proportional to 1,376.37, 2,065.14 and 1,251.21 is: 1,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.37 : 2,065.14 = 1,251.21 : x
  2. Step 2: Convert to fraction form
    1,376.37/2,065.14 = 1,251.21/x
  3. Step 3: Cross multiply
    1,376.37x = 2,065.14 × 1,251.21
  4. Step 4: Simplify right side
    1,376.37x = 2,583,923.82
  5. Step 5: Solve for x
    x = 2,583,923.82/1,376.37
  6. Step 6: Final answer
    x = 1,877.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.