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Finding the Fourth Proportional to 2,040.21, 3,060.30 and 501.21

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Solution

The fourth proportional to 2,040.21, 3,060.30 and 501.21 is: 751.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.21 : 3,060.30 = 501.21 : x
  2. Step 2: Convert to fraction form
    2,040.21/3,060.30 = 501.21/x
  3. Step 3: Cross multiply
    2,040.21x = 3,060.30 × 501.21
  4. Step 4: Simplify right side
    2,040.21x = 1,533,852.96
  5. Step 5: Solve for x
    x = 1,533,852.96/2,040.21
  6. Step 6: Final answer
    x = 751.81

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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.