Home / 5,811.16-8,019.47-3,158.65

Finding the Fourth Proportional to 5,811.16, 8,019.47 and 3,158.65

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Solution

The fourth proportional to 5,811.16, 8,019.47 and 3,158.65 is: 4,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.16 : 8,019.47 = 3,158.65 : x
  2. Step 2: Convert to fraction form
    5,811.16/8,019.47 = 3,158.65/x
  3. Step 3: Cross multiply
    5,811.16x = 8,019.47 × 3,158.65
  4. Step 4: Simplify right side
    5,811.16x = 25,330,698.92
  5. Step 5: Solve for x
    x = 25,330,698.92/5,811.16
  6. Step 6: Final answer
    x = 4,358.97

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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.