Home / 3,356.45-5,033.48-1,275.90

Finding the Fourth Proportional to 3,356.45, 5,033.48 and 1,275.90

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Solution

The fourth proportional to 3,356.45, 5,033.48 and 1,275.90 is: 1,913.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,356.45 : 5,033.48 = 1,275.90 : x
  2. Step 2: Convert to fraction form
    3,356.45/5,033.48 = 1,275.90/x
  3. Step 3: Cross multiply
    3,356.45x = 5,033.48 × 1,275.90
  4. Step 4: Simplify right side
    3,356.45x = 6,422,226.53
  5. Step 5: Solve for x
    x = 6,422,226.53/3,356.45
  6. Step 6: Final answer
    x = 1,913.40

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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.