Home / 5,579.24-8,371.02-2,115.68

Finding the Fourth Proportional to 5,579.24, 8,371.02 and 2,115.68

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Solution

The fourth proportional to 5,579.24, 8,371.02 and 2,115.68 is: 3,174.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.24 : 8,371.02 = 2,115.68 : x
  2. Step 2: Convert to fraction form
    5,579.24/8,371.02 = 2,115.68/x
  3. Step 3: Cross multiply
    5,579.24x = 8,371.02 × 2,115.68
  4. Step 4: Simplify right side
    5,579.24x = 17,710,399.59
  5. Step 5: Solve for x
    x = 17,710,399.59/5,579.24
  6. Step 6: Final answer
    x = 3,174.34

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1.5x scale

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.