Home / 3,182.39-4,390.30-1,855.31

Finding the Fourth Proportional to 3,182.39, 4,390.30 and 1,855.31

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Solution

The fourth proportional to 3,182.39, 4,390.30 and 1,855.31 is: 2,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.39 : 4,390.30 = 1,855.31 : x
  2. Step 2: Convert to fraction form
    3,182.39/4,390.30 = 1,855.31/x
  3. Step 3: Cross multiply
    3,182.39x = 4,390.30 × 1,855.31
  4. Step 4: Simplify right side
    3,182.39x = 8,145,347.86
  5. Step 5: Solve for x
    x = 8,145,347.86/3,182.39
  6. Step 6: Final answer
    x = 2,559.51

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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.