Home / 5,126.22-7,074.29-2,857.52

Finding the Fourth Proportional to 5,126.22, 7,074.29 and 2,857.52

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Solution

The fourth proportional to 5,126.22, 7,074.29 and 2,857.52 is: 3,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.22 : 7,074.29 = 2,857.52 : x
  2. Step 2: Convert to fraction form
    5,126.22/7,074.29 = 2,857.52/x
  3. Step 3: Cross multiply
    5,126.22x = 7,074.29 × 2,857.52
  4. Step 4: Simplify right side
    5,126.22x = 20,214,875.50
  5. Step 5: Solve for x
    x = 20,214,875.50/5,126.22
  6. Step 6: Final answer
    x = 3,943.43

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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.