Home / 2,556.48-3,525.96-1,929.12

Finding the Fourth Proportional to 2,556.48, 3,525.96 and 1,929.12

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Solution

The fourth proportional to 2,556.48, 3,525.96 and 1,929.12 is: 2,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.48 : 3,525.96 = 1,929.12 : x
  2. Step 2: Convert to fraction form
    2,556.48/3,525.96 = 1,929.12/x
  3. Step 3: Cross multiply
    2,556.48x = 3,525.96 × 1,929.12
  4. Step 4: Simplify right side
    2,556.48x = 6,801,999.96
  5. Step 5: Solve for x
    x = 6,801,999.96/2,556.48
  6. Step 6: Final answer
    x = 2,660.69

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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.