Home / 2,849.78-3,932.21-1,590.77

Finding the Fourth Proportional to 2,849.78, 3,932.21 and 1,590.77

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Solution

The fourth proportional to 2,849.78, 3,932.21 and 1,590.77 is: 2,194.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.78 : 3,932.21 = 1,590.77 : x
  2. Step 2: Convert to fraction form
    2,849.78/3,932.21 = 1,590.77/x
  3. Step 3: Cross multiply
    2,849.78x = 3,932.21 × 1,590.77
  4. Step 4: Simplify right side
    2,849.78x = 6,255,255.51
  5. Step 5: Solve for x
    x = 6,255,255.51/2,849.78
  6. Step 6: Final answer
    x = 2,194.99

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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.