Home / 5,487.74-8,228.80-1,787.59

Finding the Fourth Proportional to 5,487.74, 8,228.80 and 1,787.59

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Solution

The fourth proportional to 5,487.74, 8,228.80 and 1,787.59 is: 2,680.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.74 : 8,228.80 = 1,787.59 : x
  2. Step 2: Convert to fraction form
    5,487.74/8,228.80 = 1,787.59/x
  3. Step 3: Cross multiply
    5,487.74x = 8,228.80 × 1,787.59
  4. Step 4: Simplify right side
    5,487.74x = 14,709,720.59
  5. Step 5: Solve for x
    x = 14,709,720.59/5,487.74
  6. Step 6: Final answer
    x = 2,680.47

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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.