Home / 2,353.86-3,531.70-1,120.53

Finding the Fourth Proportional to 2,353.86, 3,531.70 and 1,120.53

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Solution

The fourth proportional to 2,353.86, 3,531.70 and 1,120.53 is: 1,681.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.86 : 3,531.70 = 1,120.53 : x
  2. Step 2: Convert to fraction form
    2,353.86/3,531.70 = 1,120.53/x
  3. Step 3: Cross multiply
    2,353.86x = 3,531.70 × 1,120.53
  4. Step 4: Simplify right side
    2,353.86x = 3,957,390.45
  5. Step 5: Solve for x
    x = 3,957,390.45/2,353.86
  6. Step 6: Final answer
    x = 1,681.23

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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.