Home / 3,418.29-5,127.55-1,078.32

Finding the Fourth Proportional to 3,418.29, 5,127.55 and 1,078.32

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Solution

The fourth proportional to 3,418.29, 5,127.55 and 1,078.32 is: 1,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.29 : 5,127.55 = 1,078.32 : x
  2. Step 2: Convert to fraction form
    3,418.29/5,127.55 = 1,078.32/x
  3. Step 3: Cross multiply
    3,418.29x = 5,127.55 × 1,078.32
  4. Step 4: Simplify right side
    3,418.29x = 5,529,117.79
  5. Step 5: Solve for x
    x = 5,529,117.79/3,418.29
  6. Step 6: Final answer
    x = 1,617.51

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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.