Home / 3,860.10-5,790.15-2,612.70

Finding the Fourth Proportional to 3,860.10, 5,790.15 and 2,612.70

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Solution

The fourth proportional to 3,860.10, 5,790.15 and 2,612.70 is: 3,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.10 : 5,790.15 = 2,612.70 : x
  2. Step 2: Convert to fraction form
    3,860.10/5,790.15 = 2,612.70/x
  3. Step 3: Cross multiply
    3,860.10x = 5,790.15 × 2,612.70
  4. Step 4: Simplify right side
    3,860.10x = 15,127,924.91
  5. Step 5: Solve for x
    x = 15,127,924.91/3,860.10
  6. Step 6: Final answer
    x = 3,919.05

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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.