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Finding the Fourth Proportional to 2,040.85, 3,061.27 and 580

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Solution

The fourth proportional to 2,040.85, 3,061.27 and 580 is: 870.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.85 : 3,061.27 = 580 : x
  2. Step 2: Convert to fraction form
    2,040.85/3,061.27 = 580/x
  3. Step 3: Cross multiply
    2,040.85x = 3,061.27 × 580
  4. Step 4: Simplify right side
    2,040.85x = 1,775,536.60
  5. Step 5: Solve for x
    x = 1,775,536.60/2,040.85
  6. Step 6: Final answer
    x = 870.00

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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.