Home / 5,157.12-7,116.86-2,799.27

Finding the Fourth Proportional to 5,157.12, 7,116.86 and 2,799.27

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Solution

The fourth proportional to 5,157.12, 7,116.86 and 2,799.27 is: 3,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.12 : 7,116.86 = 2,799.27 : x
  2. Step 2: Convert to fraction form
    5,157.12/7,116.86 = 2,799.27/x
  3. Step 3: Cross multiply
    5,157.12x = 7,116.86 × 2,799.27
  4. Step 4: Simplify right side
    5,157.12x = 19,922,012.69
  5. Step 5: Solve for x
    x = 19,922,012.69/5,157.12
  6. Step 6: Final answer
    x = 3,863.01

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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.