Home / 3,320.32-4,983.55-1,678.02

Finding the Fourth Proportional to 3,320.32, 4,983.55 and 1,678.02

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Solution

The fourth proportional to 3,320.32, 4,983.55 and 1,678.02 is: 2,518.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.32 : 4,983.55 = 1,678.02 : x
  2. Step 2: Convert to fraction form
    3,320.32/4,983.55 = 1,678.02/x
  3. Step 3: Cross multiply
    3,320.32x = 4,983.55 × 1,678.02
  4. Step 4: Simplify right side
    3,320.32x = 8,362,496.57
  5. Step 5: Solve for x
    x = 8,362,496.57/3,320.32
  6. Step 6: Final answer
    x = 2,518.58

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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.