Home / 2,622.87-3,925.79-1,929.36

Finding the Fourth Proportional to 2,622.87, 3,925.79 and 1,929.36

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Solution

The fourth proportional to 2,622.87, 3,925.79 and 1,929.36 is: 2,887.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.87 : 3,925.79 = 1,929.36 : x
  2. Step 2: Convert to fraction form
    2,622.87/3,925.79 = 1,929.36/x
  3. Step 3: Cross multiply
    2,622.87x = 3,925.79 × 1,929.36
  4. Step 4: Simplify right side
    2,622.87x = 7,574,252.55
  5. Step 5: Solve for x
    x = 7,574,252.55/2,622.87
  6. Step 6: Final answer
    x = 2,887.77

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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.