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Finding the Fourth Proportional to 2,615.81, 3,925.07 and 1,738.92

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Solution

The fourth proportional to 2,615.81, 3,925.07 and 1,738.92 is: 2,609.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.81 : 3,925.07 = 1,738.92 : x
  2. Step 2: Convert to fraction form
    2,615.81/3,925.07 = 1,738.92/x
  3. Step 3: Cross multiply
    2,615.81x = 3,925.07 × 1,738.92
  4. Step 4: Simplify right side
    2,615.81x = 6,825,374.03
  5. Step 5: Solve for x
    x = 6,825,374.03/2,615.81
  6. Step 6: Final answer
    x = 2,609.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.