Home / 5,139.12-7,705.44-2,832.24

Finding the Fourth Proportional to 5,139.12, 7,705.44 and 2,832.24

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Solution

The fourth proportional to 5,139.12, 7,705.44 and 2,832.24 is: 4,246.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.12 : 7,705.44 = 2,832.24 : x
  2. Step 2: Convert to fraction form
    5,139.12/7,705.44 = 2,832.24/x
  3. Step 3: Cross multiply
    5,139.12x = 7,705.44 × 2,832.24
  4. Step 4: Simplify right side
    5,139.12x = 21,823,655.39
  5. Step 5: Solve for x
    x = 21,823,655.39/5,139.12
  6. Step 6: Final answer
    x = 4,246.57

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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.