Home / 5,811.76-8,718.99-1,916.02

Finding the Fourth Proportional to 5,811.76, 8,718.99 and 1,916.02

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Solution

The fourth proportional to 5,811.76, 8,718.99 and 1,916.02 is: 2,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.76 : 8,718.99 = 1,916.02 : x
  2. Step 2: Convert to fraction form
    5,811.76/8,718.99 = 1,916.02/x
  3. Step 3: Cross multiply
    5,811.76x = 8,718.99 × 1,916.02
  4. Step 4: Simplify right side
    5,811.76x = 16,705,759.22
  5. Step 5: Solve for x
    x = 16,705,759.22/5,811.76
  6. Step 6: Final answer
    x = 2,874.48

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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.