Home / 1,743.85-2,611.20-1,642.71

Finding the Fourth Proportional to 1,743.85, 2,611.20 and 1,642.71

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Solution

The fourth proportional to 1,743.85, 2,611.20 and 1,642.71 is: 2,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.85 : 2,611.20 = 1,642.71 : x
  2. Step 2: Convert to fraction form
    1,743.85/2,611.20 = 1,642.71/x
  3. Step 3: Cross multiply
    1,743.85x = 2,611.20 × 1,642.71
  4. Step 4: Simplify right side
    1,743.85x = 4,289,444.35
  5. Step 5: Solve for x
    x = 4,289,444.35/1,743.85
  6. Step 6: Final answer
    x = 2,459.76

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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.