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Finding the Fourth Proportional to 5,179.95, 7,758.59 and 5,065.81

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Solution

The fourth proportional to 5,179.95, 7,758.59 and 5,065.81 is: 7,587.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.95 : 7,758.59 = 5,065.81 : x
  2. Step 2: Convert to fraction form
    5,179.95/7,758.59 = 5,065.81/x
  3. Step 3: Cross multiply
    5,179.95x = 7,758.59 × 5,065.81
  4. Step 4: Simplify right side
    5,179.95x = 39,303,498.08
  5. Step 5: Solve for x
    x = 39,303,498.08/5,179.95
  6. Step 6: Final answer
    x = 7,587.62

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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.