Home / 3,182.07-4,390.98-1,855.90

Finding the Fourth Proportional to 3,182.07, 4,390.98 and 1,855.90

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Solution

The fourth proportional to 3,182.07, 4,390.98 and 1,855.90 is: 2,560.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.07 : 4,390.98 = 1,855.90 : x
  2. Step 2: Convert to fraction form
    3,182.07/4,390.98 = 1,855.90/x
  3. Step 3: Cross multiply
    3,182.07x = 4,390.98 × 1,855.90
  4. Step 4: Simplify right side
    3,182.07x = 8,149,219.78
  5. Step 5: Solve for x
    x = 8,149,219.78/3,182.07
  6. Step 6: Final answer
    x = 2,560.98

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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.