Home / 3,058.11-4,220.20-1,660.86

Finding the Fourth Proportional to 3,058.11, 4,220.20 and 1,660.86

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Solution

The fourth proportional to 3,058.11, 4,220.20 and 1,660.86 is: 2,291.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.11 : 4,220.20 = 1,660.86 : x
  2. Step 2: Convert to fraction form
    3,058.11/4,220.20 = 1,660.86/x
  3. Step 3: Cross multiply
    3,058.11x = 4,220.20 × 1,660.86
  4. Step 4: Simplify right side
    3,058.11x = 7,009,161.37
  5. Step 5: Solve for x
    x = 7,009,161.37/3,058.11
  6. Step 6: Final answer
    x = 2,291.99

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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.