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Finding the Fourth Proportional to 2,617.53, 3,926.31 and 887.37

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Solution

The fourth proportional to 2,617.53, 3,926.31 and 887.37 is: 1,331.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.53 : 3,926.31 = 887.37 : x
  2. Step 2: Convert to fraction form
    2,617.53/3,926.31 = 887.37/x
  3. Step 3: Cross multiply
    2,617.53x = 3,926.31 × 887.37
  4. Step 4: Simplify right side
    2,617.53x = 3,484,089.70
  5. Step 5: Solve for x
    x = 3,484,089.70/2,617.53
  6. Step 6: Final answer
    x = 1,331.06

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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.