Home / 4,089.48-5,643.78-2,321.16

Finding the Fourth Proportional to 4,089.48, 5,643.78 and 2,321.16

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Solution

The fourth proportional to 4,089.48, 5,643.78 and 2,321.16 is: 3,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.48 : 5,643.78 = 2,321.16 : x
  2. Step 2: Convert to fraction form
    4,089.48/5,643.78 = 2,321.16/x
  3. Step 3: Cross multiply
    4,089.48x = 5,643.78 × 2,321.16
  4. Step 4: Simplify right side
    4,089.48x = 13,100,116.38
  5. Step 5: Solve for x
    x = 13,100,116.38/4,089.48
  6. Step 6: Final answer
    x = 3,203.37

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Half scale
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Double scale
Find fourth proportional to 4,090.48, 5,645.16 and 2,322.16
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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.