Home / 2,849.76-3,932.61-1,590.90

Finding the Fourth Proportional to 2,849.76, 3,932.61 and 1,590.90

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Solution

The fourth proportional to 2,849.76, 3,932.61 and 1,590.90 is: 2,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.76 : 3,932.61 = 1,590.90 : x
  2. Step 2: Convert to fraction form
    2,849.76/3,932.61 = 1,590.90/x
  3. Step 3: Cross multiply
    2,849.76x = 3,932.61 × 1,590.90
  4. Step 4: Simplify right side
    2,849.76x = 6,256,389.25
  5. Step 5: Solve for x
    x = 6,256,389.25/2,849.76
  6. Step 6: Final answer
    x = 2,195.41

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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.