Home / 2,849.79-3,932.71-1,590.81

Finding the Fourth Proportional to 2,849.79, 3,932.71 and 1,590.81

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Solution

The fourth proportional to 2,849.79, 3,932.71 and 1,590.81 is: 2,195.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.79 : 3,932.71 = 1,590.81 : x
  2. Step 2: Convert to fraction form
    2,849.79/3,932.71 = 1,590.81/x
  3. Step 3: Cross multiply
    2,849.79x = 3,932.71 × 1,590.81
  4. Step 4: Simplify right side
    2,849.79x = 6,256,194.40
  5. Step 5: Solve for x
    x = 6,256,194.40/2,849.79
  6. Step 6: Final answer
    x = 2,195.32

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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.