Home / 1,743.21-2,615.70-1,158.61

Finding the Fourth Proportional to 1,743.21, 2,615.70 and 1,158.61

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Solution

The fourth proportional to 1,743.21, 2,615.70 and 1,158.61 is: 1,738.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.21 : 2,615.70 = 1,158.61 : x
  2. Step 2: Convert to fraction form
    1,743.21/2,615.70 = 1,158.61/x
  3. Step 3: Cross multiply
    1,743.21x = 2,615.70 × 1,158.61
  4. Step 4: Simplify right side
    1,743.21x = 3,030,576.18
  5. Step 5: Solve for x
    x = 3,030,576.18/1,743.21
  6. Step 6: Final answer
    x = 1,738.50

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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.