Home / 3,686.19-5,086.64-2,113.95

Finding the Fourth Proportional to 3,686.19, 5,086.64 and 2,113.95

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Solution

The fourth proportional to 3,686.19, 5,086.64 and 2,113.95 is: 2,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.19 : 5,086.64 = 2,113.95 : x
  2. Step 2: Convert to fraction form
    3,686.19/5,086.64 = 2,113.95/x
  3. Step 3: Cross multiply
    3,686.19x = 5,086.64 × 2,113.95
  4. Step 4: Simplify right side
    3,686.19x = 10,752,892.06
  5. Step 5: Solve for x
    x = 10,752,892.06/3,686.19
  6. Step 6: Final answer
    x = 2,917.07

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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.