Home / 3,061.03-4,224.21-1,663.78

Finding the Fourth Proportional to 3,061.03, 4,224.21 and 1,663.78

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Solution

The fourth proportional to 3,061.03, 4,224.21 and 1,663.78 is: 2,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.03 : 4,224.21 = 1,663.78 : x
  2. Step 2: Convert to fraction form
    3,061.03/4,224.21 = 1,663.78/x
  3. Step 3: Cross multiply
    3,061.03x = 4,224.21 × 1,663.78
  4. Step 4: Simplify right side
    3,061.03x = 7,028,156.11
  5. Step 5: Solve for x
    x = 7,028,156.11/3,061.03
  6. Step 6: Final answer
    x = 2,296.01

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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.