Home / 2,855.08-3,939.96-1,675.92

Finding the Fourth Proportional to 2,855.08, 3,939.96 and 1,675.92

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Solution

The fourth proportional to 2,855.08, 3,939.96 and 1,675.92 is: 2,312.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.08 : 3,939.96 = 1,675.92 : x
  2. Step 2: Convert to fraction form
    2,855.08/3,939.96 = 1,675.92/x
  3. Step 3: Cross multiply
    2,855.08x = 3,939.96 × 1,675.92
  4. Step 4: Simplify right side
    2,855.08x = 6,603,057.76
  5. Step 5: Solve for x
    x = 6,603,057.76/2,855.08
  6. Step 6: Final answer
    x = 2,312.74

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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.