Home / 4,089.06-5,643.09-3,145.86

Finding the Fourth Proportional to 4,089.06, 5,643.09 and 3,145.86

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Solution

The fourth proportional to 4,089.06, 5,643.09 and 3,145.86 is: 4,341.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.06 : 5,643.09 = 3,145.86 : x
  2. Step 2: Convert to fraction form
    4,089.06/5,643.09 = 3,145.86/x
  3. Step 3: Cross multiply
    4,089.06x = 5,643.09 × 3,145.86
  4. Step 4: Simplify right side
    4,089.06x = 17,752,371.11
  5. Step 5: Solve for x
    x = 17,752,371.11/4,089.06
  6. Step 6: Final answer
    x = 4,341.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.