Home / 5,162.76-7,123.81-2,893.75

Finding the Fourth Proportional to 5,162.76, 7,123.81 and 2,893.75

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Solution

The fourth proportional to 5,162.76, 7,123.81 and 2,893.75 is: 3,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,162.76 : 7,123.81 = 2,893.75 : x
  2. Step 2: Convert to fraction form
    5,162.76/7,123.81 = 2,893.75/x
  3. Step 3: Cross multiply
    5,162.76x = 7,123.81 × 2,893.75
  4. Step 4: Simplify right side
    5,162.76x = 20,614,525.19
  5. Step 5: Solve for x
    x = 20,614,525.19/5,162.76
  6. Step 6: Final answer
    x = 3,992.93

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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.