Home / 3,519.42-5,279.85-1,210.62

Finding the Fourth Proportional to 3,519.42, 5,279.85 and 1,210.62

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Solution

The fourth proportional to 3,519.42, 5,279.85 and 1,210.62 is: 1,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.42 : 5,279.85 = 1,210.62 : x
  2. Step 2: Convert to fraction form
    3,519.42/5,279.85 = 1,210.62/x
  3. Step 3: Cross multiply
    3,519.42x = 5,279.85 × 1,210.62
  4. Step 4: Simplify right side
    3,519.42x = 6,391,892.01
  5. Step 5: Solve for x
    x = 6,391,892.01/3,519.42
  6. Step 6: Final answer
    x = 1,816.18

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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.