Home / 5,629.07-7,767.50-3,111.05

Finding the Fourth Proportional to 5,629.07, 7,767.50 and 3,111.05

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Solution

The fourth proportional to 5,629.07, 7,767.50 and 3,111.05 is: 4,292.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.07 : 7,767.50 = 3,111.05 : x
  2. Step 2: Convert to fraction form
    5,629.07/7,767.50 = 3,111.05/x
  3. Step 3: Cross multiply
    5,629.07x = 7,767.50 × 3,111.05
  4. Step 4: Simplify right side
    5,629.07x = 24,165,080.88
  5. Step 5: Solve for x
    x = 24,165,080.88/5,629.07
  6. Step 6: Final answer
    x = 4,292.91

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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.