Home / 7,657.21-11,486.90-2,725.39

Finding the Fourth Proportional to 7,657.21, 11,486.90 and 2,725.39

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Solution

The fourth proportional to 7,657.21, 11,486.90 and 2,725.39 is: 4,088.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,657.21 : 11,486.90 = 2,725.39 : x
  2. Step 2: Convert to fraction form
    7,657.21/11,486.90 = 2,725.39/x
  3. Step 3: Cross multiply
    7,657.21x = 11,486.90 × 2,725.39
  4. Step 4: Simplify right side
    7,657.21x = 31,306,282.39
  5. Step 5: Solve for x
    x = 31,306,282.39/7,657.21
  6. Step 6: Final answer
    x = 4,088.47

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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.