Home / 3,210.26-4,815.31-1,478.88

Finding the Fourth Proportional to 3,210.26, 4,815.31 and 1,478.88

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Solution

The fourth proportional to 3,210.26, 4,815.31 and 1,478.88 is: 2,218.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.26 : 4,815.31 = 1,478.88 : x
  2. Step 2: Convert to fraction form
    3,210.26/4,815.31 = 1,478.88/x
  3. Step 3: Cross multiply
    3,210.26x = 4,815.31 × 1,478.88
  4. Step 4: Simplify right side
    3,210.26x = 7,121,267.50
  5. Step 5: Solve for x
    x = 7,121,267.50/3,210.26
  6. Step 6: Final answer
    x = 2,218.29

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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.