Home / 3,019.15-4,164.50-2,181.08

Finding the Fourth Proportional to 3,019.15, 4,164.50 and 2,181.08

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Solution

The fourth proportional to 3,019.15, 4,164.50 and 2,181.08 is: 3,008.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.15 : 4,164.50 = 2,181.08 : x
  2. Step 2: Convert to fraction form
    3,019.15/4,164.50 = 2,181.08/x
  3. Step 3: Cross multiply
    3,019.15x = 4,164.50 × 2,181.08
  4. Step 4: Simplify right side
    3,019.15x = 9,083,113.11
  5. Step 5: Solve for x
    x = 9,083,113.11/3,019.15
  6. Step 6: Final answer
    x = 3,008.51

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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.