Home / 5,486.19-8,229.78-1,787.46

Finding the Fourth Proportional to 5,486.19, 8,229.78 and 1,787.46

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Solution

The fourth proportional to 5,486.19, 8,229.78 and 1,787.46 is: 2,681.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.19 : 8,229.78 = 1,787.46 : x
  2. Step 2: Convert to fraction form
    5,486.19/8,229.78 = 1,787.46/x
  3. Step 3: Cross multiply
    5,486.19x = 8,229.78 × 1,787.46
  4. Step 4: Simplify right side
    5,486.19x = 14,710,402.56
  5. Step 5: Solve for x
    x = 14,710,402.56/5,486.19
  6. Step 6: Final answer
    x = 2,681.35

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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.