Home / 2,353.90-3,530.88-1,121.44

Finding the Fourth Proportional to 2,353.90, 3,530.88 and 1,121.44

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Solution

The fourth proportional to 2,353.90, 3,530.88 and 1,121.44 is: 1,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.90 : 3,530.88 = 1,121.44 : x
  2. Step 2: Convert to fraction form
    2,353.90/3,530.88 = 1,121.44/x
  3. Step 3: Cross multiply
    2,353.90x = 3,530.88 × 1,121.44
  4. Step 4: Simplify right side
    2,353.90x = 3,959,670.07
  5. Step 5: Solve for x
    x = 3,959,670.07/2,353.90
  6. Step 6: Final answer
    x = 1,682.17

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1.5x scale

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.