Home / 3,187.16-4,782.59-1,338.13

Finding the Fourth Proportional to 3,187.16, 4,782.59 and 1,338.13

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Solution

The fourth proportional to 3,187.16, 4,782.59 and 1,338.13 is: 2,007.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.16 : 4,782.59 = 1,338.13 : x
  2. Step 2: Convert to fraction form
    3,187.16/4,782.59 = 1,338.13/x
  3. Step 3: Cross multiply
    3,187.16x = 4,782.59 × 1,338.13
  4. Step 4: Simplify right side
    3,187.16x = 6,399,727.16
  5. Step 5: Solve for x
    x = 6,399,727.16/3,187.16
  6. Step 6: Final answer
    x = 2,007.97

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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.