Home / 6,516.10-8,991.84-3,721.60

Finding the Fourth Proportional to 6,516.10, 8,991.84 and 3,721.60

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Solution

The fourth proportional to 6,516.10, 8,991.84 and 3,721.60 is: 5,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.10 : 8,991.84 = 3,721.60 : x
  2. Step 2: Convert to fraction form
    6,516.10/8,991.84 = 3,721.60/x
  3. Step 3: Cross multiply
    6,516.10x = 8,991.84 × 3,721.60
  4. Step 4: Simplify right side
    6,516.10x = 33,464,031.74
  5. Step 5: Solve for x
    x = 33,464,031.74/6,516.10
  6. Step 6: Final answer
    x = 5,135.59

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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.