Home / 3,119.15-4,306.09-2,057.65

Finding the Fourth Proportional to 3,119.15, 4,306.09 and 2,057.65

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Solution

The fourth proportional to 3,119.15, 4,306.09 and 2,057.65 is: 2,840.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.15 : 4,306.09 = 2,057.65 : x
  2. Step 2: Convert to fraction form
    3,119.15/4,306.09 = 2,057.65/x
  3. Step 3: Cross multiply
    3,119.15x = 4,306.09 × 2,057.65
  4. Step 4: Simplify right side
    3,119.15x = 8,860,410.18
  5. Step 5: Solve for x
    x = 8,860,410.18/3,119.15
  6. Step 6: Final answer
    x = 2,840.65

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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.