Home / 5,114.06-7,057.61-2,990.96

Finding the Fourth Proportional to 5,114.06, 7,057.61 and 2,990.96

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Solution

The fourth proportional to 5,114.06, 7,057.61 and 2,990.96 is: 4,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.06 : 7,057.61 = 2,990.96 : x
  2. Step 2: Convert to fraction form
    5,114.06/7,057.61 = 2,990.96/x
  3. Step 3: Cross multiply
    5,114.06x = 7,057.61 × 2,990.96
  4. Step 4: Simplify right side
    5,114.06x = 21,109,029.21
  5. Step 5: Solve for x
    x = 21,109,029.21/5,114.06
  6. Step 6: Final answer
    x = 4,127.65

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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.