Home / 5,811.07-8,019.29-3,158.47

Finding the Fourth Proportional to 5,811.07, 8,019.29 and 3,158.47

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Solution

The fourth proportional to 5,811.07, 8,019.29 and 3,158.47 is: 4,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.07 : 8,019.29 = 3,158.47 : x
  2. Step 2: Convert to fraction form
    5,811.07/8,019.29 = 3,158.47/x
  3. Step 3: Cross multiply
    5,811.07x = 8,019.29 × 3,158.47
  4. Step 4: Simplify right side
    5,811.07x = 25,328,687.04
  5. Step 5: Solve for x
    x = 25,328,687.04/5,811.07
  6. Step 6: Final answer
    x = 4,358.70

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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.