Home / 5,486.30-8,230.13-1,787.54

Finding the Fourth Proportional to 5,486.30, 8,230.13 and 1,787.54

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Solution

The fourth proportional to 5,486.30, 8,230.13 and 1,787.54 is: 2,681.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.30 : 8,230.13 = 1,787.54 : x
  2. Step 2: Convert to fraction form
    5,486.30/8,230.13 = 1,787.54/x
  3. Step 3: Cross multiply
    5,486.30x = 8,230.13 × 1,787.54
  4. Step 4: Simplify right side
    5,486.30x = 14,711,636.49
  5. Step 5: Solve for x
    x = 14,711,636.49/5,486.30
  6. Step 6: Final answer
    x = 2,681.52

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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.