Home / 2,311.24-3,467.71-1,387.45

Finding the Fourth Proportional to 2,311.24, 3,467.71 and 1,387.45

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Solution

The fourth proportional to 2,311.24, 3,467.71 and 1,387.45 is: 2,081.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.24 : 3,467.71 = 1,387.45 : x
  2. Step 2: Convert to fraction form
    2,311.24/3,467.71 = 1,387.45/x
  3. Step 3: Cross multiply
    2,311.24x = 3,467.71 × 1,387.45
  4. Step 4: Simplify right side
    2,311.24x = 4,811,274.24
  5. Step 5: Solve for x
    x = 4,811,274.24/2,311.24
  6. Step 6: Final answer
    x = 2,081.69

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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.