Home / 7,276.25-10,916.49-2,345.78

Finding the Fourth Proportional to 7,276.25, 10,916.49 and 2,345.78

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Solution

The fourth proportional to 7,276.25, 10,916.49 and 2,345.78 is: 3,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.25 : 10,916.49 = 2,345.78 : x
  2. Step 2: Convert to fraction form
    7,276.25/10,916.49 = 2,345.78/x
  3. Step 3: Cross multiply
    7,276.25x = 10,916.49 × 2,345.78
  4. Step 4: Simplify right side
    7,276.25x = 25,607,683.91
  5. Step 5: Solve for x
    x = 25,607,683.91/7,276.25
  6. Step 6: Final answer
    x = 3,519.35

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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.