Home / 5,712.23-7,884.86-3,925.63

Finding the Fourth Proportional to 5,712.23, 7,884.86 and 3,925.63

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Solution

The fourth proportional to 5,712.23, 7,884.86 and 3,925.63 is: 5,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.23 : 7,884.86 = 3,925.63 : x
  2. Step 2: Convert to fraction form
    5,712.23/7,884.86 = 3,925.63/x
  3. Step 3: Cross multiply
    5,712.23x = 7,884.86 × 3,925.63
  4. Step 4: Simplify right side
    5,712.23x = 30,953,003.54
  5. Step 5: Solve for x
    x = 30,953,003.54/5,712.23
  6. Step 6: Final answer
    x = 5,418.73

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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.