Home / 2,577.37-3,556.84-1,398.44

Finding the Fourth Proportional to 2,577.37, 3,556.84 and 1,398.44

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Solution

The fourth proportional to 2,577.37, 3,556.84 and 1,398.44 is: 1,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.37 : 3,556.84 = 1,398.44 : x
  2. Step 2: Convert to fraction form
    2,577.37/3,556.84 = 1,398.44/x
  3. Step 3: Cross multiply
    2,577.37x = 3,556.84 × 1,398.44
  4. Step 4: Simplify right side
    2,577.37x = 4,974,037.97
  5. Step 5: Solve for x
    x = 4,974,037.97/2,577.37
  6. Step 6: Final answer
    x = 1,929.89

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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.