Home / 4,215.82-5,816.53-2,447.08

Finding the Fourth Proportional to 4,215.82, 5,816.53 and 2,447.08

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Solution

The fourth proportional to 4,215.82, 5,816.53 and 2,447.08 is: 3,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.82 : 5,816.53 = 2,447.08 : x
  2. Step 2: Convert to fraction form
    4,215.82/5,816.53 = 2,447.08/x
  3. Step 3: Cross multiply
    4,215.82x = 5,816.53 × 2,447.08
  4. Step 4: Simplify right side
    4,215.82x = 14,233,514.23
  5. Step 5: Solve for x
    x = 14,233,514.23/4,215.82
  6. Step 6: Final answer
    x = 3,376.21

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Half scale
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Double scale
Find fourth proportional to 4,216.82, 5,817.91 and 2,448.08
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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.