Home / 3,688.53-5,531.82-2,518.31

Finding the Fourth Proportional to 3,688.53, 5,531.82 and 2,518.31

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Solution

The fourth proportional to 3,688.53, 5,531.82 and 2,518.31 is: 3,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.53 : 5,531.82 = 2,518.31 : x
  2. Step 2: Convert to fraction form
    3,688.53/5,531.82 = 2,518.31/x
  3. Step 3: Cross multiply
    3,688.53x = 5,531.82 × 2,518.31
  4. Step 4: Simplify right side
    3,688.53x = 13,930,837.62
  5. Step 5: Solve for x
    x = 13,930,837.62/3,688.53
  6. Step 6: Final answer
    x = 3,776.80

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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.