Home / 3,200.87-4,795.08-2,101.91

Finding the Fourth Proportional to 3,200.87, 4,795.08 and 2,101.91

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Solution

The fourth proportional to 3,200.87, 4,795.08 and 2,101.91 is: 3,148.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.87 : 4,795.08 = 2,101.91 : x
  2. Step 2: Convert to fraction form
    3,200.87/4,795.08 = 2,101.91/x
  3. Step 3: Cross multiply
    3,200.87x = 4,795.08 × 2,101.91
  4. Step 4: Simplify right side
    3,200.87x = 10,078,802.63
  5. Step 5: Solve for x
    x = 10,078,802.63/3,200.87
  6. Step 6: Final answer
    x = 3,148.77

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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.