Home / 5,107.65-7,049.22-3,118.17

Finding the Fourth Proportional to 5,107.65, 7,049.22 and 3,118.17

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Solution

The fourth proportional to 5,107.65, 7,049.22 and 3,118.17 is: 4,303.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.65 : 7,049.22 = 3,118.17 : x
  2. Step 2: Convert to fraction form
    5,107.65/7,049.22 = 3,118.17/x
  3. Step 3: Cross multiply
    5,107.65x = 7,049.22 × 3,118.17
  4. Step 4: Simplify right side
    5,107.65x = 21,980,666.33
  5. Step 5: Solve for x
    x = 21,980,666.33/5,107.65
  6. Step 6: Final answer
    x = 4,303.48

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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.