Home / 3,748.64-5,618.96-2,821.32

Finding the Fourth Proportional to 3,748.64, 5,618.96 and 2,821.32

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Solution

The fourth proportional to 3,748.64, 5,618.96 and 2,821.32 is: 4,228.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.64 : 5,618.96 = 2,821.32 : x
  2. Step 2: Convert to fraction form
    3,748.64/5,618.96 = 2,821.32/x
  3. Step 3: Cross multiply
    3,748.64x = 5,618.96 × 2,821.32
  4. Step 4: Simplify right side
    3,748.64x = 15,852,904.39
  5. Step 5: Solve for x
    x = 15,852,904.39/3,748.64
  6. Step 6: Final answer
    x = 4,228.98

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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.