Home / 3,715.85-5,119.66-3,054.89

Finding the Fourth Proportional to 3,715.85, 5,119.66 and 3,054.89

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Solution

The fourth proportional to 3,715.85, 5,119.66 and 3,054.89 is: 4,209.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.85 : 5,119.66 = 3,054.89 : x
  2. Step 2: Convert to fraction form
    3,715.85/5,119.66 = 3,054.89/x
  3. Step 3: Cross multiply
    3,715.85x = 5,119.66 × 3,054.89
  4. Step 4: Simplify right side
    3,715.85x = 15,639,998.14
  5. Step 5: Solve for x
    x = 15,639,998.14/3,715.85
  6. Step 6: Final answer
    x = 4,209.00

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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.