Home / 2,353.56-3,531.51-1,120.65

Finding the Fourth Proportional to 2,353.56, 3,531.51 and 1,120.65

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Solution

The fourth proportional to 2,353.56, 3,531.51 and 1,120.65 is: 1,681.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.56 : 3,531.51 = 1,120.65 : x
  2. Step 2: Convert to fraction form
    2,353.56/3,531.51 = 1,120.65/x
  3. Step 3: Cross multiply
    2,353.56x = 3,531.51 × 1,120.65
  4. Step 4: Simplify right side
    2,353.56x = 3,957,586.68
  5. Step 5: Solve for x
    x = 3,957,586.68/2,353.56
  6. Step 6: Final answer
    x = 1,681.53

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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.