Home / 6,491.08-8,961.06-3,976.84

Finding the Fourth Proportional to 6,491.08, 8,961.06 and 3,976.84

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Solution

The fourth proportional to 6,491.08, 8,961.06 and 3,976.84 is: 5,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,491.08 : 8,961.06 = 3,976.84 : x
  2. Step 2: Convert to fraction form
    6,491.08/8,961.06 = 3,976.84/x
  3. Step 3: Cross multiply
    6,491.08x = 8,961.06 × 3,976.84
  4. Step 4: Simplify right side
    6,491.08x = 35,636,701.85
  5. Step 5: Solve for x
    x = 35,636,701.85/6,491.08
  6. Step 6: Final answer
    x = 5,490.10

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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.