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Finding the Fourth Proportional to 8,289.72, 12,434.59 and 2,741.58

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Solution

The fourth proportional to 8,289.72, 12,434.59 and 2,741.58 is: 4,112.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.72 : 12,434.59 = 2,741.58 : x
  2. Step 2: Convert to fraction form
    8,289.72/12,434.59 = 2,741.58/x
  3. Step 3: Cross multiply
    8,289.72x = 12,434.59 × 2,741.58
  4. Step 4: Simplify right side
    8,289.72x = 34,090,378.46
  5. Step 5: Solve for x
    x = 34,090,378.46/8,289.72
  6. Step 6: Final answer
    x = 4,112.37

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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.