Home / 3,686.10-5,086.80-2,114.16

Finding the Fourth Proportional to 3,686.10, 5,086.80 and 2,114.16

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Solution

The fourth proportional to 3,686.10, 5,086.80 and 2,114.16 is: 2,917.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.10 : 5,086.80 = 2,114.16 : x
  2. Step 2: Convert to fraction form
    3,686.10/5,086.80 = 2,114.16/x
  3. Step 3: Cross multiply
    3,686.10x = 5,086.80 × 2,114.16
  4. Step 4: Simplify right side
    3,686.10x = 10,754,309.09
  5. Step 5: Solve for x
    x = 10,754,309.09/3,686.10
  6. Step 6: Final answer
    x = 2,917.53

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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.