Home / 4,086.16-5,640.09-2,670.05

Finding the Fourth Proportional to 4,086.16, 5,640.09 and 2,670.05

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Solution

The fourth proportional to 4,086.16, 5,640.09 and 2,670.05 is: 3,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.16 : 5,640.09 = 2,670.05 : x
  2. Step 2: Convert to fraction form
    4,086.16/5,640.09 = 2,670.05/x
  3. Step 3: Cross multiply
    4,086.16x = 5,640.09 × 2,670.05
  4. Step 4: Simplify right side
    4,086.16x = 15,059,308.95
  5. Step 5: Solve for x
    x = 15,059,308.95/4,086.16
  6. Step 6: Final answer
    x = 3,685.45

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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.