Home / 3,505.42-5,260.36-1,313.96

Finding the Fourth Proportional to 3,505.42, 5,260.36 and 1,313.96

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Solution

The fourth proportional to 3,505.42, 5,260.36 and 1,313.96 is: 1,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.42 : 5,260.36 = 1,313.96 : x
  2. Step 2: Convert to fraction form
    3,505.42/5,260.36 = 1,313.96/x
  3. Step 3: Cross multiply
    3,505.42x = 5,260.36 × 1,313.96
  4. Step 4: Simplify right side
    3,505.42x = 6,911,902.63
  5. Step 5: Solve for x
    x = 6,911,902.63/3,505.42
  6. Step 6: Final answer
    x = 1,971.78

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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.