Home / 7,278.44-10,916.60-3,579.68

Finding the Fourth Proportional to 7,278.44, 10,916.60 and 3,579.68

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Solution

The fourth proportional to 7,278.44, 10,916.60 and 3,579.68 is: 5,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.44 : 10,916.60 = 3,579.68 : x
  2. Step 2: Convert to fraction form
    7,278.44/10,916.60 = 3,579.68/x
  3. Step 3: Cross multiply
    7,278.44x = 10,916.60 × 3,579.68
  4. Step 4: Simplify right side
    7,278.44x = 39,077,862.21
  5. Step 5: Solve for x
    x = 39,077,862.21/7,278.44
  6. Step 6: Final answer
    x = 5,368.99

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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.