Home / 4,086.66-5,640.77-2,670.55

Finding the Fourth Proportional to 4,086.66, 5,640.77 and 2,670.55

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Solution

The fourth proportional to 4,086.66, 5,640.77 and 2,670.55 is: 3,686.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.66 : 5,640.77 = 2,670.55 : x
  2. Step 2: Convert to fraction form
    4,086.66/5,640.77 = 2,670.55/x
  3. Step 3: Cross multiply
    4,086.66x = 5,640.77 × 2,670.55
  4. Step 4: Simplify right side
    4,086.66x = 15,063,958.32
  5. Step 5: Solve for x
    x = 15,063,958.32/4,086.66
  6. Step 6: Final answer
    x = 3,686.13

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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.