Home / 3,119.91-4,666.19-2,715.32

Finding the Fourth Proportional to 3,119.91, 4,666.19 and 2,715.32

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Solution

The fourth proportional to 3,119.91, 4,666.19 and 2,715.32 is: 4,061.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.91 : 4,666.19 = 2,715.32 : x
  2. Step 2: Convert to fraction form
    3,119.91/4,666.19 = 2,715.32/x
  3. Step 3: Cross multiply
    3,119.91x = 4,666.19 × 2,715.32
  4. Step 4: Simplify right side
    3,119.91x = 12,670,162.12
  5. Step 5: Solve for x
    x = 12,670,162.12/3,119.91
  6. Step 6: Final answer
    x = 4,061.07

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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.