Home / 2,709.56-3,739.90-1,531.02

Finding the Fourth Proportional to 2,709.56, 3,739.90 and 1,531.02

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Solution

The fourth proportional to 2,709.56, 3,739.90 and 1,531.02 is: 2,113.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.56 : 3,739.90 = 1,531.02 : x
  2. Step 2: Convert to fraction form
    2,709.56/3,739.90 = 1,531.02/x
  3. Step 3: Cross multiply
    2,709.56x = 3,739.90 × 1,531.02
  4. Step 4: Simplify right side
    2,709.56x = 5,725,861.70
  5. Step 5: Solve for x
    x = 5,725,861.70/2,709.56
  6. Step 6: Final answer
    x = 2,113.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.