Home / 5,158.22-7,117.80-2,919.74

Finding the Fourth Proportional to 5,158.22, 7,117.80 and 2,919.74

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Solution

The fourth proportional to 5,158.22, 7,117.80 and 2,919.74 is: 4,028.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.22 : 7,117.80 = 2,919.74 : x
  2. Step 2: Convert to fraction form
    5,158.22/7,117.80 = 2,919.74/x
  3. Step 3: Cross multiply
    5,158.22x = 7,117.80 × 2,919.74
  4. Step 4: Simplify right side
    5,158.22x = 20,782,125.37
  5. Step 5: Solve for x
    x = 20,782,125.37/5,158.22
  6. Step 6: Final answer
    x = 4,028.93

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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.