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Finding the Fourth Proportional to 6,656.48, 9,984.72 and 3,145.33

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Solution

The fourth proportional to 6,656.48, 9,984.72 and 3,145.33 is: 4,718.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.48 : 9,984.72 = 3,145.33 : x
  2. Step 2: Convert to fraction form
    6,656.48/9,984.72 = 3,145.33/x
  3. Step 3: Cross multiply
    6,656.48x = 9,984.72 × 3,145.33
  4. Step 4: Simplify right side
    6,656.48x = 31,405,239.36
  5. Step 5: Solve for x
    x = 31,405,239.36/6,656.48
  6. Step 6: Final answer
    x = 4,718.00

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.