Home / 3,678.48-5,520.28-1,625.36

Finding the Fourth Proportional to 3,678.48, 5,520.28 and 1,625.36

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Solution

The fourth proportional to 3,678.48, 5,520.28 and 1,625.36 is: 2,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.48 : 5,520.28 = 1,625.36 : x
  2. Step 2: Convert to fraction form
    3,678.48/5,520.28 = 1,625.36/x
  3. Step 3: Cross multiply
    3,678.48x = 5,520.28 × 1,625.36
  4. Step 4: Simplify right side
    3,678.48x = 8,972,442.30
  5. Step 5: Solve for x
    x = 8,972,442.30/3,678.48
  6. Step 6: Final answer
    x = 2,439.17

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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.