Home / 5,587.87-8,382.21-1,890.49

Finding the Fourth Proportional to 5,587.87, 8,382.21 and 1,890.49

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Solution

The fourth proportional to 5,587.87, 8,382.21 and 1,890.49 is: 2,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.87 : 8,382.21 = 1,890.49 : x
  2. Step 2: Convert to fraction form
    5,587.87/8,382.21 = 1,890.49/x
  3. Step 3: Cross multiply
    5,587.87x = 8,382.21 × 1,890.49
  4. Step 4: Simplify right side
    5,587.87x = 15,846,484.18
  5. Step 5: Solve for x
    x = 15,846,484.18/5,587.87
  6. Step 6: Final answer
    x = 2,835.87

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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.