Home / 7,284.20-10,926.29-1,812.20

Finding the Fourth Proportional to 7,284.20, 10,926.29 and 1,812.20

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Solution

The fourth proportional to 7,284.20, 10,926.29 and 1,812.20 is: 2,718.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.20 : 10,926.29 = 1,812.20 : x
  2. Step 2: Convert to fraction form
    7,284.20/10,926.29 = 1,812.20/x
  3. Step 3: Cross multiply
    7,284.20x = 10,926.29 × 1,812.20
  4. Step 4: Simplify right side
    7,284.20x = 19,800,559.05
  5. Step 5: Solve for x
    x = 19,800,559.05/7,284.20
  6. Step 6: Final answer
    x = 2,718.29

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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.