Home / 3,355.78-5,032.99-1,275.06

Finding the Fourth Proportional to 3,355.78, 5,032.99 and 1,275.06

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Solution

The fourth proportional to 3,355.78, 5,032.99 and 1,275.06 is: 1,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.78 : 5,032.99 = 1,275.06 : x
  2. Step 2: Convert to fraction form
    3,355.78/5,032.99 = 1,275.06/x
  3. Step 3: Cross multiply
    3,355.78x = 5,032.99 × 1,275.06
  4. Step 4: Simplify right side
    3,355.78x = 6,417,348.46
  5. Step 5: Solve for x
    x = 6,417,348.46/3,355.78
  6. Step 6: Final answer
    x = 1,912.33

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1.5x scale

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.