Home / 4,001.16-5,510.07-3,989.01

Finding the Fourth Proportional to 4,001.16, 5,510.07 and 3,989.01

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Solution

The fourth proportional to 4,001.16, 5,510.07 and 3,989.01 is: 5,493.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,001.16 : 5,510.07 = 3,989.01 : x
  2. Step 2: Convert to fraction form
    4,001.16/5,510.07 = 3,989.01/x
  3. Step 3: Cross multiply
    4,001.16x = 5,510.07 × 3,989.01
  4. Step 4: Simplify right side
    4,001.16x = 21,979,724.33
  5. Step 5: Solve for x
    x = 21,979,724.33/4,001.16
  6. Step 6: Final answer
    x = 5,493.34

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Double scale
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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.