Home / 2,749.40-3,791.47-2,521.74

Finding the Fourth Proportional to 2,749.40, 3,791.47 and 2,521.74

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Solution

The fourth proportional to 2,749.40, 3,791.47 and 2,521.74 is: 3,477.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.40 : 3,791.47 = 2,521.74 : x
  2. Step 2: Convert to fraction form
    2,749.40/3,791.47 = 2,521.74/x
  3. Step 3: Cross multiply
    2,749.40x = 3,791.47 × 2,521.74
  4. Step 4: Simplify right side
    2,749.40x = 9,561,101.56
  5. Step 5: Solve for x
    x = 9,561,101.56/2,749.40
  6. Step 6: Final answer
    x = 3,477.52

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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.