Home / 3,210.63-4,815.87-1,479.26

Finding the Fourth Proportional to 3,210.63, 4,815.87 and 1,479.26

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Solution

The fourth proportional to 3,210.63, 4,815.87 and 1,479.26 is: 2,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.63 : 4,815.87 = 1,479.26 : x
  2. Step 2: Convert to fraction form
    3,210.63/4,815.87 = 1,479.26/x
  3. Step 3: Cross multiply
    3,210.63x = 4,815.87 × 1,479.26
  4. Step 4: Simplify right side
    3,210.63x = 7,123,905.32
  5. Step 5: Solve for x
    x = 7,123,905.32/3,210.63
  6. Step 6: Final answer
    x = 2,218.85

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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.