Home / 5,187.66-7,776.09-3,885.18

Finding the Fourth Proportional to 5,187.66, 7,776.09 and 3,885.18

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Solution

The fourth proportional to 5,187.66, 7,776.09 and 3,885.18 is: 5,823.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.66 : 7,776.09 = 3,885.18 : x
  2. Step 2: Convert to fraction form
    5,187.66/7,776.09 = 3,885.18/x
  3. Step 3: Cross multiply
    5,187.66x = 7,776.09 × 3,885.18
  4. Step 4: Simplify right side
    5,187.66x = 30,211,509.35
  5. Step 5: Solve for x
    x = 30,211,509.35/5,187.66
  6. Step 6: Final answer
    x = 5,823.73

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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.