Home / 5,518.06-8,278.09-3,545.64

Finding the Fourth Proportional to 5,518.06, 8,278.09 and 3,545.64

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Solution

The fourth proportional to 5,518.06, 8,278.09 and 3,545.64 is: 5,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.06 : 8,278.09 = 3,545.64 : x
  2. Step 2: Convert to fraction form
    5,518.06/8,278.09 = 3,545.64/x
  3. Step 3: Cross multiply
    5,518.06x = 8,278.09 × 3,545.64
  4. Step 4: Simplify right side
    5,518.06x = 29,351,118.16
  5. Step 5: Solve for x
    x = 29,351,118.16/5,518.06
  6. Step 6: Final answer
    x = 5,319.10

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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.