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Finding the Fourth Proportional to 2,125.83, 3,188.99 and 565.85

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Solution

The fourth proportional to 2,125.83, 3,188.99 and 565.85 is: 848.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.83 : 3,188.99 = 565.85 : x
  2. Step 2: Convert to fraction form
    2,125.83/3,188.99 = 565.85/x
  3. Step 3: Cross multiply
    2,125.83x = 3,188.99 × 565.85
  4. Step 4: Simplify right side
    2,125.83x = 1,804,496.20
  5. Step 5: Solve for x
    x = 1,804,496.20/2,125.83
  6. Step 6: Final answer
    x = 848.84

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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.