Home / 5,178.11-7,762.86-2,056.19

Finding the Fourth Proportional to 5,178.11, 7,762.86 and 2,056.19

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Solution

The fourth proportional to 5,178.11, 7,762.86 and 2,056.19 is: 3,082.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.11 : 7,762.86 = 2,056.19 : x
  2. Step 2: Convert to fraction form
    5,178.11/7,762.86 = 2,056.19/x
  3. Step 3: Cross multiply
    5,178.11x = 7,762.86 × 2,056.19
  4. Step 4: Simplify right side
    5,178.11x = 15,961,876.29
  5. Step 5: Solve for x
    x = 15,961,876.29/5,178.11
  6. Step 6: Final answer
    x = 3,082.57

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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.