Home / 4,115.25-5,674.02-3,118.79

Finding the Fourth Proportional to 4,115.25, 5,674.02 and 3,118.79

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Solution

The fourth proportional to 4,115.25, 5,674.02 and 3,118.79 is: 4,300.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.25 : 5,674.02 = 3,118.79 : x
  2. Step 2: Convert to fraction form
    4,115.25/5,674.02 = 3,118.79/x
  3. Step 3: Cross multiply
    4,115.25x = 5,674.02 × 3,118.79
  4. Step 4: Simplify right side
    4,115.25x = 17,696,048.47
  5. Step 5: Solve for x
    x = 17,696,048.47/4,115.25
  6. Step 6: Final answer
    x = 4,300.12

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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.