Home / 6,690.56-9,232.40-3,896.24

Finding the Fourth Proportional to 6,690.56, 9,232.40 and 3,896.24

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Solution

The fourth proportional to 6,690.56, 9,232.40 and 3,896.24 is: 5,376.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.56 : 9,232.40 = 3,896.24 : x
  2. Step 2: Convert to fraction form
    6,690.56/9,232.40 = 3,896.24/x
  3. Step 3: Cross multiply
    6,690.56x = 9,232.40 × 3,896.24
  4. Step 4: Simplify right side
    6,690.56x = 35,971,646.18
  5. Step 5: Solve for x
    x = 35,971,646.18/6,690.56
  6. Step 6: Final answer
    x = 5,376.48

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Double scale
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Similar ratio
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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.