Home / 3,795.64-5,686.08-2,147.20

Finding the Fourth Proportional to 3,795.64, 5,686.08 and 2,147.20

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Solution

The fourth proportional to 3,795.64, 5,686.08 and 2,147.20 is: 3,216.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,795.64 : 5,686.08 = 2,147.20 : x
  2. Step 2: Convert to fraction form
    3,795.64/5,686.08 = 2,147.20/x
  3. Step 3: Cross multiply
    3,795.64x = 5,686.08 × 2,147.20
  4. Step 4: Simplify right side
    3,795.64x = 12,209,150.98
  5. Step 5: Solve for x
    x = 12,209,150.98/3,795.64
  6. Step 6: Final answer
    x = 3,216.63

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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.