Home / 7,324.02-10,985.76-2,129.76

Finding the Fourth Proportional to 7,324.02, 10,985.76 and 2,129.76

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Solution

The fourth proportional to 7,324.02, 10,985.76 and 2,129.76 is: 3,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.02 : 10,985.76 = 2,129.76 : x
  2. Step 2: Convert to fraction form
    7,324.02/10,985.76 = 2,129.76/x
  3. Step 3: Cross multiply
    7,324.02x = 10,985.76 × 2,129.76
  4. Step 4: Simplify right side
    7,324.02x = 23,397,032.22
  5. Step 5: Solve for x
    x = 23,397,032.22/7,324.02
  6. Step 6: Final answer
    x = 3,194.56

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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.