Home / 3,487.51-5,224.36-2,101.21

Finding the Fourth Proportional to 3,487.51, 5,224.36 and 2,101.21

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Solution

The fourth proportional to 3,487.51, 5,224.36 and 2,101.21 is: 3,147.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.51 : 5,224.36 = 2,101.21 : x
  2. Step 2: Convert to fraction form
    3,487.51/5,224.36 = 2,101.21/x
  3. Step 3: Cross multiply
    3,487.51x = 5,224.36 × 2,101.21
  4. Step 4: Simplify right side
    3,487.51x = 10,977,477.48
  5. Step 5: Solve for x
    x = 10,977,477.48/3,487.51
  6. Step 6: Final answer
    x = 3,147.65

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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.