Home / 3,018.47-4,164.82-2,311.13

Finding the Fourth Proportional to 3,018.47, 4,164.82 and 2,311.13

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Solution

The fourth proportional to 3,018.47, 4,164.82 and 2,311.13 is: 3,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.47 : 4,164.82 = 2,311.13 : x
  2. Step 2: Convert to fraction form
    3,018.47/4,164.82 = 2,311.13/x
  3. Step 3: Cross multiply
    3,018.47x = 4,164.82 × 2,311.13
  4. Step 4: Simplify right side
    3,018.47x = 9,625,445.08
  5. Step 5: Solve for x
    x = 9,625,445.08/3,018.47
  6. Step 6: Final answer
    x = 3,188.85

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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.