Home / 2,261.53-3,120.60-1,316.59

Finding the Fourth Proportional to 2,261.53, 3,120.60 and 1,316.59

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Solution

The fourth proportional to 2,261.53, 3,120.60 and 1,316.59 is: 1,816.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.53 : 3,120.60 = 1,316.59 : x
  2. Step 2: Convert to fraction form
    2,261.53/3,120.60 = 1,316.59/x
  3. Step 3: Cross multiply
    2,261.53x = 3,120.60 × 1,316.59
  4. Step 4: Simplify right side
    2,261.53x = 4,108,550.75
  5. Step 5: Solve for x
    x = 4,108,550.75/2,261.53
  6. Step 6: Final answer
    x = 1,816.71

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1.5x scale

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.