Home / 3,716.68-5,129.54-2,390.28

Finding the Fourth Proportional to 3,716.68, 5,129.54 and 2,390.28

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Solution

The fourth proportional to 3,716.68, 5,129.54 and 2,390.28 is: 3,298.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.68 : 5,129.54 = 2,390.28 : x
  2. Step 2: Convert to fraction form
    3,716.68/5,129.54 = 2,390.28/x
  3. Step 3: Cross multiply
    3,716.68x = 5,129.54 × 2,390.28
  4. Step 4: Simplify right side
    3,716.68x = 12,261,036.87
  5. Step 5: Solve for x
    x = 12,261,036.87/3,716.68
  6. Step 6: Final answer
    x = 3,298.92

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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.