Home / 2,619.39-3,614.93-1,556.87

Finding the Fourth Proportional to 2,619.39, 3,614.93 and 1,556.87

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Solution

The fourth proportional to 2,619.39, 3,614.93 and 1,556.87 is: 2,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.39 : 3,614.93 = 1,556.87 : x
  2. Step 2: Convert to fraction form
    2,619.39/3,614.93 = 1,556.87/x
  3. Step 3: Cross multiply
    2,619.39x = 3,614.93 × 1,556.87
  4. Step 4: Simplify right side
    2,619.39x = 5,627,976.38
  5. Step 5: Solve for x
    x = 5,627,976.38/2,619.39
  6. Step 6: Final answer
    x = 2,148.58

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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.