Home / 3,186.93-4,398.17-1,789.77

Finding the Fourth Proportional to 3,186.93, 4,398.17 and 1,789.77

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Solution

The fourth proportional to 3,186.93, 4,398.17 and 1,789.77 is: 2,470.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.93 : 4,398.17 = 1,789.77 : x
  2. Step 2: Convert to fraction form
    3,186.93/4,398.17 = 1,789.77/x
  3. Step 3: Cross multiply
    3,186.93x = 4,398.17 × 1,789.77
  4. Step 4: Simplify right side
    3,186.93x = 7,871,703.77
  5. Step 5: Solve for x
    x = 7,871,703.77/3,186.93
  6. Step 6: Final answer
    x = 2,470.00

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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.