Home / 3,880.19-5,357.19-2,556.14

Finding the Fourth Proportional to 3,880.19, 5,357.19 and 2,556.14

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Solution

The fourth proportional to 3,880.19, 5,357.19 and 2,556.14 is: 3,529.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.19 : 5,357.19 = 2,556.14 : x
  2. Step 2: Convert to fraction form
    3,880.19/5,357.19 = 2,556.14/x
  3. Step 3: Cross multiply
    3,880.19x = 5,357.19 × 2,556.14
  4. Step 4: Simplify right side
    3,880.19x = 13,693,727.65
  5. Step 5: Solve for x
    x = 13,693,727.65/3,880.19
  6. Step 6: Final answer
    x = 3,529.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.