Home / 2,556.36-3,830.98-1,239.57

Finding the Fourth Proportional to 2,556.36, 3,830.98 and 1,239.57

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Solution

The fourth proportional to 2,556.36, 3,830.98 and 1,239.57 is: 1,857.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.36 : 3,830.98 = 1,239.57 : x
  2. Step 2: Convert to fraction form
    2,556.36/3,830.98 = 1,239.57/x
  3. Step 3: Cross multiply
    2,556.36x = 3,830.98 × 1,239.57
  4. Step 4: Simplify right side
    2,556.36x = 4,748,767.88
  5. Step 5: Solve for x
    x = 4,748,767.88/2,556.36
  6. Step 6: Final answer
    x = 1,857.63

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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.