Home / 6,515.91-8,991.95-3,826.59

Finding the Fourth Proportional to 6,515.91, 8,991.95 and 3,826.59

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Solution

The fourth proportional to 6,515.91, 8,991.95 and 3,826.59 is: 5,280.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.91 : 8,991.95 = 3,826.59 : x
  2. Step 2: Convert to fraction form
    6,515.91/8,991.95 = 3,826.59/x
  3. Step 3: Cross multiply
    6,515.91x = 8,991.95 × 3,826.59
  4. Step 4: Simplify right side
    6,515.91x = 34,408,486.82
  5. Step 5: Solve for x
    x = 34,408,486.82/6,515.91
  6. Step 6: Final answer
    x = 5,280.69

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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.