Home / 7,138.23-10,708.26-2,458.96

Finding the Fourth Proportional to 7,138.23, 10,708.26 and 2,458.96

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Solution

The fourth proportional to 7,138.23, 10,708.26 and 2,458.96 is: 3,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.23 : 10,708.26 = 2,458.96 : x
  2. Step 2: Convert to fraction form
    7,138.23/10,708.26 = 2,458.96/x
  3. Step 3: Cross multiply
    7,138.23x = 10,708.26 × 2,458.96
  4. Step 4: Simplify right side
    7,138.23x = 26,331,147.02
  5. Step 5: Solve for x
    x = 26,331,147.02/7,138.23
  6. Step 6: Final answer
    x = 3,688.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.