Home / 3,185.95-4,779.15-1,335.21

Finding the Fourth Proportional to 3,185.95, 4,779.15 and 1,335.21

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Solution

The fourth proportional to 3,185.95, 4,779.15 and 1,335.21 is: 2,002.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.95 : 4,779.15 = 1,335.21 : x
  2. Step 2: Convert to fraction form
    3,185.95/4,779.15 = 1,335.21/x
  3. Step 3: Cross multiply
    3,185.95x = 4,779.15 × 1,335.21
  4. Step 4: Simplify right side
    3,185.95x = 6,381,168.87
  5. Step 5: Solve for x
    x = 6,381,168.87/3,185.95
  6. Step 6: Final answer
    x = 2,002.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.