Home / 3,210.24-4,814.64-1,129.62

Finding the Fourth Proportional to 3,210.24, 4,814.64 and 1,129.62

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Solution

The fourth proportional to 3,210.24, 4,814.64 and 1,129.62 is: 1,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.24 : 4,814.64 = 1,129.62 : x
  2. Step 2: Convert to fraction form
    3,210.24/4,814.64 = 1,129.62/x
  3. Step 3: Cross multiply
    3,210.24x = 4,814.64 × 1,129.62
  4. Step 4: Simplify right side
    3,210.24x = 5,438,713.64
  5. Step 5: Solve for x
    x = 5,438,713.64/3,210.24
  6. Step 6: Final answer
    x = 1,694.18

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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.