Home / 3,977.02-5,488.29-2,208.64

Finding the Fourth Proportional to 3,977.02, 5,488.29 and 2,208.64

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Solution

The fourth proportional to 3,977.02, 5,488.29 and 2,208.64 is: 3,047.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.02 : 5,488.29 = 2,208.64 : x
  2. Step 2: Convert to fraction form
    3,977.02/5,488.29 = 2,208.64/x
  3. Step 3: Cross multiply
    3,977.02x = 5,488.29 × 2,208.64
  4. Step 4: Simplify right side
    3,977.02x = 12,121,656.83
  5. Step 5: Solve for x
    x = 12,121,656.83/3,977.02
  6. Step 6: Final answer
    x = 3,047.92

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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.