Home / 5,157.37-7,117.12-2,799.51

Finding the Fourth Proportional to 5,157.37, 7,117.12 and 2,799.51

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Solution

The fourth proportional to 5,157.37, 7,117.12 and 2,799.51 is: 3,863.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.37 : 7,117.12 = 2,799.51 : x
  2. Step 2: Convert to fraction form
    5,157.37/7,117.12 = 2,799.51/x
  3. Step 3: Cross multiply
    5,157.37x = 7,117.12 × 2,799.51
  4. Step 4: Simplify right side
    5,157.37x = 19,924,413.03
  5. Step 5: Solve for x
    x = 19,924,413.03/5,157.37
  6. Step 6: Final answer
    x = 3,863.29

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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.