Home / 7,325.34-10,990.29-2,131.23

Finding the Fourth Proportional to 7,325.34, 10,990.29 and 2,131.23

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Solution

The fourth proportional to 7,325.34, 10,990.29 and 2,131.23 is: 3,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.34 : 10,990.29 = 2,131.23 : x
  2. Step 2: Convert to fraction form
    7,325.34/10,990.29 = 2,131.23/x
  3. Step 3: Cross multiply
    7,325.34x = 10,990.29 × 2,131.23
  4. Step 4: Simplify right side
    7,325.34x = 23,422,835.76
  5. Step 5: Solve for x
    x = 23,422,835.76/7,325.34
  6. Step 6: Final answer
    x = 3,197.51

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Double scale
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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.