Home / 5,716.11-7,889.36-3,618.75

Finding the Fourth Proportional to 5,716.11, 7,889.36 and 3,618.75

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Solution

The fourth proportional to 5,716.11, 7,889.36 and 3,618.75 is: 4,994.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.11 : 7,889.36 = 3,618.75 : x
  2. Step 2: Convert to fraction form
    5,716.11/7,889.36 = 3,618.75/x
  3. Step 3: Cross multiply
    5,716.11x = 7,889.36 × 3,618.75
  4. Step 4: Simplify right side
    5,716.11x = 28,549,603.41
  5. Step 5: Solve for x
    x = 28,549,603.41/5,716.11
  6. Step 6: Final answer
    x = 4,994.59

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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.