Home / 5,518.06-7,613.01-3,529.78

Finding the Fourth Proportional to 5,518.06, 7,613.01 and 3,529.78

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Solution

The fourth proportional to 5,518.06, 7,613.01 and 3,529.78 is: 4,869.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.06 : 7,613.01 = 3,529.78 : x
  2. Step 2: Convert to fraction form
    5,518.06/7,613.01 = 3,529.78/x
  3. Step 3: Cross multiply
    5,518.06x = 7,613.01 × 3,529.78
  4. Step 4: Simplify right side
    5,518.06x = 26,872,250.44
  5. Step 5: Solve for x
    x = 26,872,250.44/5,518.06
  6. Step 6: Final answer
    x = 4,869.87

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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.