Home / 6,515.64-8,991.19-3,644.35

Finding the Fourth Proportional to 6,515.64, 8,991.19 and 3,644.35

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Solution

The fourth proportional to 6,515.64, 8,991.19 and 3,644.35 is: 5,028.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.64 : 8,991.19 = 3,644.35 : x
  2. Step 2: Convert to fraction form
    6,515.64/8,991.19 = 3,644.35/x
  3. Step 3: Cross multiply
    6,515.64x = 8,991.19 × 3,644.35
  4. Step 4: Simplify right side
    6,515.64x = 32,767,043.28
  5. Step 5: Solve for x
    x = 32,767,043.28/6,515.64
  6. Step 6: Final answer
    x = 5,028.98

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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.