Home / 3,134.28-4,700.34-1,284.87

Finding the Fourth Proportional to 3,134.28, 4,700.34 and 1,284.87

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Solution

The fourth proportional to 3,134.28, 4,700.34 and 1,284.87 is: 1,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.28 : 4,700.34 = 1,284.87 : x
  2. Step 2: Convert to fraction form
    3,134.28/4,700.34 = 1,284.87/x
  3. Step 3: Cross multiply
    3,134.28x = 4,700.34 × 1,284.87
  4. Step 4: Simplify right side
    3,134.28x = 6,039,325.86
  5. Step 5: Solve for x
    x = 6,039,325.86/3,134.28
  6. Step 6: Final answer
    x = 1,926.86

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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.