Home / 5,487.95-8,231.07-1,790.17

Finding the Fourth Proportional to 5,487.95, 8,231.07 and 1,790.17

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Solution

The fourth proportional to 5,487.95, 8,231.07 and 1,790.17 is: 2,684.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.95 : 8,231.07 = 1,790.17 : x
  2. Step 2: Convert to fraction form
    5,487.95/8,231.07 = 1,790.17/x
  3. Step 3: Cross multiply
    5,487.95x = 8,231.07 × 1,790.17
  4. Step 4: Simplify right side
    5,487.95x = 14,735,000.72
  5. Step 5: Solve for x
    x = 14,735,000.72/5,487.95
  6. Step 6: Final answer
    x = 2,684.97

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1.5x scale

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.