Home / 1,861.60-2,569.33-1,076.11

Finding the Fourth Proportional to 1,861.60, 2,569.33 and 1,076.11

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Solution

The fourth proportional to 1,861.60, 2,569.33 and 1,076.11 is: 1,485.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.60 : 2,569.33 = 1,076.11 : x
  2. Step 2: Convert to fraction form
    1,861.60/2,569.33 = 1,076.11/x
  3. Step 3: Cross multiply
    1,861.60x = 2,569.33 × 1,076.11
  4. Step 4: Simplify right side
    1,861.60x = 2,764,863.48
  5. Step 5: Solve for x
    x = 2,764,863.48/1,861.60
  6. Step 6: Final answer
    x = 1,485.21

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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.