Home / 3,489.70-5,236.38-1,543.24

Finding the Fourth Proportional to 3,489.70, 5,236.38 and 1,543.24

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Solution

The fourth proportional to 3,489.70, 5,236.38 and 1,543.24 is: 2,315.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.70 : 5,236.38 = 1,543.24 : x
  2. Step 2: Convert to fraction form
    3,489.70/5,236.38 = 1,543.24/x
  3. Step 3: Cross multiply
    3,489.70x = 5,236.38 × 1,543.24
  4. Step 4: Simplify right side
    3,489.70x = 8,080,991.07
  5. Step 5: Solve for x
    x = 8,080,991.07/3,489.70
  6. Step 6: Final answer
    x = 2,315.67

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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.