Home / 3,692.20-5,095.14-2,120.20

Finding the Fourth Proportional to 3,692.20, 5,095.14 and 2,120.20

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Solution

The fourth proportional to 3,692.20, 5,095.14 and 2,120.20 is: 2,925.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.20 : 5,095.14 = 2,120.20 : x
  2. Step 2: Convert to fraction form
    3,692.20/5,095.14 = 2,120.20/x
  3. Step 3: Cross multiply
    3,692.20x = 5,095.14 × 2,120.20
  4. Step 4: Simplify right side
    3,692.20x = 10,802,715.83
  5. Step 5: Solve for x
    x = 10,802,715.83/3,692.20
  6. Step 6: Final answer
    x = 2,925.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.