Home / 5,811.25-8,019.51-3,158.65

Finding the Fourth Proportional to 5,811.25, 8,019.51 and 3,158.65

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Solution

The fourth proportional to 5,811.25, 8,019.51 and 3,158.65 is: 4,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.25 : 8,019.51 = 3,158.65 : x
  2. Step 2: Convert to fraction form
    5,811.25/8,019.51 = 3,158.65/x
  3. Step 3: Cross multiply
    5,811.25x = 8,019.51 × 3,158.65
  4. Step 4: Simplify right side
    5,811.25x = 25,330,825.26
  5. Step 5: Solve for x
    x = 25,330,825.26/5,811.25
  6. Step 6: Final answer
    x = 4,358.93

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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.