Home / 5,426.52-8,128.84-2,500.80

Finding the Fourth Proportional to 5,426.52, 8,128.84 and 2,500.80

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Solution

The fourth proportional to 5,426.52, 8,128.84 and 2,500.80 is: 3,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.52 : 8,128.84 = 2,500.80 : x
  2. Step 2: Convert to fraction form
    5,426.52/8,128.84 = 2,500.80/x
  3. Step 3: Cross multiply
    5,426.52x = 8,128.84 × 2,500.80
  4. Step 4: Simplify right side
    5,426.52x = 20,328,603.07
  5. Step 5: Solve for x
    x = 20,328,603.07/5,426.52
  6. Step 6: Final answer
    x = 3,746.16

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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.