Home / 6,117.36-8,439.96-3,758.64

Finding the Fourth Proportional to 6,117.36, 8,439.96 and 3,758.64

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Solution

The fourth proportional to 6,117.36, 8,439.96 and 3,758.64 is: 5,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,117.36 : 8,439.96 = 3,758.64 : x
  2. Step 2: Convert to fraction form
    6,117.36/8,439.96 = 3,758.64/x
  3. Step 3: Cross multiply
    6,117.36x = 8,439.96 × 3,758.64
  4. Step 4: Simplify right side
    6,117.36x = 31,722,771.25
  5. Step 5: Solve for x
    x = 31,722,771.25/6,117.36
  6. Step 6: Final answer
    x = 5,185.70

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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.