Home / 5,422.78-8,133.20-1,526.26

Finding the Fourth Proportional to 5,422.78, 8,133.20 and 1,526.26

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Solution

The fourth proportional to 5,422.78, 8,133.20 and 1,526.26 is: 2,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.78 : 8,133.20 = 1,526.26 : x
  2. Step 2: Convert to fraction form
    5,422.78/8,133.20 = 1,526.26/x
  3. Step 3: Cross multiply
    5,422.78x = 8,133.20 × 1,526.26
  4. Step 4: Simplify right side
    5,422.78x = 12,413,377.83
  5. Step 5: Solve for x
    x = 12,413,377.83/5,422.78
  6. Step 6: Final answer
    x = 2,289.12

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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.