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Finding the Fourth Proportional to 2,617.99, 3,929.72 and 1,925.44

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Solution

The fourth proportional to 2,617.99, 3,929.72 and 1,925.44 is: 2,890.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.99 : 3,929.72 = 1,925.44 : x
  2. Step 2: Convert to fraction form
    2,617.99/3,929.72 = 1,925.44/x
  3. Step 3: Cross multiply
    2,617.99x = 3,929.72 × 1,925.44
  4. Step 4: Simplify right side
    2,617.99x = 7,566,440.08
  5. Step 5: Solve for x
    x = 7,566,440.08/2,617.99
  6. Step 6: Final answer
    x = 2,890.17

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1.5x scale

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.