Home / 5,690.20-8,535.30-3,721.90

Finding the Fourth Proportional to 5,690.20, 8,535.30 and 3,721.90

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Solution

The fourth proportional to 5,690.20, 8,535.30 and 3,721.90 is: 5,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.20 : 8,535.30 = 3,721.90 : x
  2. Step 2: Convert to fraction form
    5,690.20/8,535.30 = 3,721.90/x
  3. Step 3: Cross multiply
    5,690.20x = 8,535.30 × 3,721.90
  4. Step 4: Simplify right side
    5,690.20x = 31,767,533.07
  5. Step 5: Solve for x
    x = 31,767,533.07/5,690.20
  6. Step 6: Final answer
    x = 5,582.85

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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.