Home / 1,861.20-2,569.50-1,163.52

Finding the Fourth Proportional to 1,861.20, 2,569.50 and 1,163.52

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Solution

The fourth proportional to 1,861.20, 2,569.50 and 1,163.52 is: 1,606.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.20 : 2,569.50 = 1,163.52 : x
  2. Step 2: Convert to fraction form
    1,861.20/2,569.50 = 1,163.52/x
  3. Step 3: Cross multiply
    1,861.20x = 2,569.50 × 1,163.52
  4. Step 4: Simplify right side
    1,861.20x = 2,989,664.64
  5. Step 5: Solve for x
    x = 2,989,664.64/1,861.20
  6. Step 6: Final answer
    x = 1,606.31

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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.