Home / 5,485.31-8,227.96-1,787.53

Finding the Fourth Proportional to 5,485.31, 8,227.96 and 1,787.53

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Solution

The fourth proportional to 5,485.31, 8,227.96 and 1,787.53 is: 2,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.31 : 8,227.96 = 1,787.53 : x
  2. Step 2: Convert to fraction form
    5,485.31/8,227.96 = 1,787.53/x
  3. Step 3: Cross multiply
    5,485.31x = 8,227.96 × 1,787.53
  4. Step 4: Simplify right side
    5,485.31x = 14,707,725.34
  5. Step 5: Solve for x
    x = 14,707,725.34/5,485.31
  6. Step 6: Final answer
    x = 2,681.29

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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.