Home / 5,692.52-8,540.78-2,920.50

Finding the Fourth Proportional to 5,692.52, 8,540.78 and 2,920.50

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Solution

The fourth proportional to 5,692.52, 8,540.78 and 2,920.50 is: 4,381.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,692.52 : 8,540.78 = 2,920.50 : x
  2. Step 2: Convert to fraction form
    5,692.52/8,540.78 = 2,920.50/x
  3. Step 3: Cross multiply
    5,692.52x = 8,540.78 × 2,920.50
  4. Step 4: Simplify right side
    5,692.52x = 24,943,347.99
  5. Step 5: Solve for x
    x = 24,943,347.99/5,692.52
  6. Step 6: Final answer
    x = 4,381.78

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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.