Home / 5,412.68-8,121.26-1,950.28

Finding the Fourth Proportional to 5,412.68, 8,121.26 and 1,950.28

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Solution

The fourth proportional to 5,412.68, 8,121.26 and 1,950.28 is: 2,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.68 : 8,121.26 = 1,950.28 : x
  2. Step 2: Convert to fraction form
    5,412.68/8,121.26 = 1,950.28/x
  3. Step 3: Cross multiply
    5,412.68x = 8,121.26 × 1,950.28
  4. Step 4: Simplify right side
    5,412.68x = 15,838,730.95
  5. Step 5: Solve for x
    x = 15,838,730.95/5,412.68
  6. Step 6: Final answer
    x = 2,926.23

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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.