Home / 5,264.35-7,889.68-2,140.72

Finding the Fourth Proportional to 5,264.35, 7,889.68 and 2,140.72

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Solution

The fourth proportional to 5,264.35, 7,889.68 and 2,140.72 is: 3,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,264.35 : 7,889.68 = 2,140.72 : x
  2. Step 2: Convert to fraction form
    5,264.35/7,889.68 = 2,140.72/x
  3. Step 3: Cross multiply
    5,264.35x = 7,889.68 × 2,140.72
  4. Step 4: Simplify right side
    5,264.35x = 16,889,578.72
  5. Step 5: Solve for x
    x = 16,889,578.72/5,264.35
  6. Step 6: Final answer
    x = 3,208.29

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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.