Home / 1,376.10-2,061.72-828.54

Finding the Fourth Proportional to 1,376.10, 2,061.72 and 828.54

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Solution

The fourth proportional to 1,376.10, 2,061.72 and 828.54 is: 1,241.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.10 : 2,061.72 = 828.54 : x
  2. Step 2: Convert to fraction form
    1,376.10/2,061.72 = 828.54/x
  3. Step 3: Cross multiply
    1,376.10x = 2,061.72 × 828.54
  4. Step 4: Simplify right side
    1,376.10x = 1,708,217.49
  5. Step 5: Solve for x
    x = 1,708,217.49/1,376.10
  6. Step 6: Final answer
    x = 1,241.35

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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.