Home / 5,157.23-7,116.95-2,799.36

Finding the Fourth Proportional to 5,157.23, 7,116.95 and 2,799.36

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Solution

The fourth proportional to 5,157.23, 7,116.95 and 2,799.36 is: 3,863.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.23 : 7,116.95 = 2,799.36 : x
  2. Step 2: Convert to fraction form
    5,157.23/7,116.95 = 2,799.36/x
  3. Step 3: Cross multiply
    5,157.23x = 7,116.95 × 2,799.36
  4. Step 4: Simplify right side
    5,157.23x = 19,922,891.16
  5. Step 5: Solve for x
    x = 19,922,891.16/5,157.23
  6. Step 6: Final answer
    x = 3,863.10

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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.