Home / 5,812.76-8,715.48-1,916.12

Finding the Fourth Proportional to 5,812.76, 8,715.48 and 1,916.12

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Solution

The fourth proportional to 5,812.76, 8,715.48 and 1,916.12 is: 2,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.76 : 8,715.48 = 1,916.12 : x
  2. Step 2: Convert to fraction form
    5,812.76/8,715.48 = 1,916.12/x
  3. Step 3: Cross multiply
    5,812.76x = 8,715.48 × 1,916.12
  4. Step 4: Simplify right side
    5,812.76x = 16,699,905.54
  5. Step 5: Solve for x
    x = 16,699,905.54/5,812.76
  6. Step 6: Final answer
    x = 2,872.97

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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.