Home / 2,188.83-3,021.10-1,442.93

Finding the Fourth Proportional to 2,188.83, 3,021.10 and 1,442.93

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Solution

The fourth proportional to 2,188.83, 3,021.10 and 1,442.93 is: 1,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.83 : 3,021.10 = 1,442.93 : x
  2. Step 2: Convert to fraction form
    2,188.83/3,021.10 = 1,442.93/x
  3. Step 3: Cross multiply
    2,188.83x = 3,021.10 × 1,442.93
  4. Step 4: Simplify right side
    2,188.83x = 4,359,217.11
  5. Step 5: Solve for x
    x = 4,359,217.11/2,188.83
  6. Step 6: Final answer
    x = 1,991.57

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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.