Home / 3,182.58-4,390.26-1,855.80

Finding the Fourth Proportional to 3,182.58, 4,390.26 and 1,855.80

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Solution

The fourth proportional to 3,182.58, 4,390.26 and 1,855.80 is: 2,560.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.58 : 4,390.26 = 1,855.80 : x
  2. Step 2: Convert to fraction form
    3,182.58/4,390.26 = 1,855.80/x
  3. Step 3: Cross multiply
    3,182.58x = 4,390.26 × 1,855.80
  4. Step 4: Simplify right side
    3,182.58x = 8,147,444.51
  5. Step 5: Solve for x
    x = 8,147,444.51/3,182.58
  6. Step 6: Final answer
    x = 2,560.01

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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.