Home / 5,528.78-8,293.17-1,424.78

Finding the Fourth Proportional to 5,528.78, 8,293.17 and 1,424.78

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Solution

The fourth proportional to 5,528.78, 8,293.17 and 1,424.78 is: 2,137.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.78 : 8,293.17 = 1,424.78 : x
  2. Step 2: Convert to fraction form
    5,528.78/8,293.17 = 1,424.78/x
  3. Step 3: Cross multiply
    5,528.78x = 8,293.17 × 1,424.78
  4. Step 4: Simplify right side
    5,528.78x = 11,815,967.05
  5. Step 5: Solve for x
    x = 11,815,967.05/5,528.78
  6. Step 6: Final answer
    x = 2,137.17

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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.