Home / 5,899.82-8,139.74-3,660.90

Finding the Fourth Proportional to 5,899.82, 8,139.74 and 3,660.90

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Solution

The fourth proportional to 5,899.82, 8,139.74 and 3,660.90 is: 5,050.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,899.82 : 8,139.74 = 3,660.90 : x
  2. Step 2: Convert to fraction form
    5,899.82/8,139.74 = 3,660.90/x
  3. Step 3: Cross multiply
    5,899.82x = 8,139.74 × 3,660.90
  4. Step 4: Simplify right side
    5,899.82x = 29,798,774.17
  5. Step 5: Solve for x
    x = 29,798,774.17/5,899.82
  6. Step 6: Final answer
    x = 5,050.79

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1.5x scale

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.