Home / 3,218.14-4,828.56-1,369.65

Finding the Fourth Proportional to 3,218.14, 4,828.56 and 1,369.65

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Solution

The fourth proportional to 3,218.14, 4,828.56 and 1,369.65 is: 2,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.14 : 4,828.56 = 1,369.65 : x
  2. Step 2: Convert to fraction form
    3,218.14/4,828.56 = 1,369.65/x
  3. Step 3: Cross multiply
    3,218.14x = 4,828.56 × 1,369.65
  4. Step 4: Simplify right side
    3,218.14x = 6,613,437.20
  5. Step 5: Solve for x
    x = 6,613,437.20/3,218.14
  6. Step 6: Final answer
    x = 2,055.05

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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.