Home / 3,530.79-5,297.40-1,340.15

Finding the Fourth Proportional to 3,530.79, 5,297.40 and 1,340.15

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Solution

The fourth proportional to 3,530.79, 5,297.40 and 1,340.15 is: 2,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.79 : 5,297.40 = 1,340.15 : x
  2. Step 2: Convert to fraction form
    3,530.79/5,297.40 = 1,340.15/x
  3. Step 3: Cross multiply
    3,530.79x = 5,297.40 × 1,340.15
  4. Step 4: Simplify right side
    3,530.79x = 7,099,284.12
  5. Step 5: Solve for x
    x = 7,099,284.12/3,530.79
  6. Step 6: Final answer
    x = 2,010.68

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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.