Home / 5,155.16-7,112.91-2,916.54

Finding the Fourth Proportional to 5,155.16, 7,112.91 and 2,916.54

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Solution

The fourth proportional to 5,155.16, 7,112.91 and 2,916.54 is: 4,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.16 : 7,112.91 = 2,916.54 : x
  2. Step 2: Convert to fraction form
    5,155.16/7,112.91 = 2,916.54/x
  3. Step 3: Cross multiply
    5,155.16x = 7,112.91 × 2,916.54
  4. Step 4: Simplify right side
    5,155.16x = 20,745,086.53
  5. Step 5: Solve for x
    x = 20,745,086.53/5,155.16
  6. Step 6: Final answer
    x = 4,024.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.