Home / 1,160.55-1,741.11-380.60

Finding the Fourth Proportional to 1,160.55, 1,741.11 and 380.60

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Solution

The fourth proportional to 1,160.55, 1,741.11 and 380.60 is: 570.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.55 : 1,741.11 = 380.60 : x
  2. Step 2: Convert to fraction form
    1,160.55/1,741.11 = 380.60/x
  3. Step 3: Cross multiply
    1,160.55x = 1,741.11 × 380.60
  4. Step 4: Simplify right side
    1,160.55x = 662,657.76
  5. Step 5: Solve for x
    x = 662,657.76/1,160.55
  6. Step 6: Final answer
    x = 570.99

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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.