Home / 1,723.21-2,378.90-1,166.60

Finding the Fourth Proportional to 1,723.21, 2,378.90 and 1,166.60

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Solution

The fourth proportional to 1,723.21, 2,378.90 and 1,166.60 is: 1,610.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.21 : 2,378.90 = 1,166.60 : x
  2. Step 2: Convert to fraction form
    1,723.21/2,378.90 = 1,166.60/x
  3. Step 3: Cross multiply
    1,723.21x = 2,378.90 × 1,166.60
  4. Step 4: Simplify right side
    1,723.21x = 2,775,233.60
  5. Step 5: Solve for x
    x = 2,775,233.60/1,723.21
  6. Step 6: Final answer
    x = 1,610.50

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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.