Home / 1,625.63-2,247.41-1,556.78

Finding the Fourth Proportional to 1,625.63, 2,247.41 and 1,556.78

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Solution

The fourth proportional to 1,625.63, 2,247.41 and 1,556.78 is: 2,152.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.63 : 2,247.41 = 1,556.78 : x
  2. Step 2: Convert to fraction form
    1,625.63/2,247.41 = 1,556.78/x
  3. Step 3: Cross multiply
    1,625.63x = 2,247.41 × 1,556.78
  4. Step 4: Simplify right side
    1,625.63x = 3,498,715.59
  5. Step 5: Solve for x
    x = 3,498,715.59/1,625.63
  6. Step 6: Final answer
    x = 2,152.23

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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.