Home / 2,239.56-3,090.34-1,343.20

Finding the Fourth Proportional to 2,239.56, 3,090.34 and 1,343.20

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Solution

The fourth proportional to 2,239.56, 3,090.34 and 1,343.20 is: 1,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.56 : 3,090.34 = 1,343.20 : x
  2. Step 2: Convert to fraction form
    2,239.56/3,090.34 = 1,343.20/x
  3. Step 3: Cross multiply
    2,239.56x = 3,090.34 × 1,343.20
  4. Step 4: Simplify right side
    2,239.56x = 4,150,944.69
  5. Step 5: Solve for x
    x = 4,150,944.69/2,239.56
  6. Step 6: Final answer
    x = 1,853.46

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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.