Home / 1,341.21-2,012.66-725.34

Finding the Fourth Proportional to 1,341.21, 2,012.66 and 725.34

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Solution

The fourth proportional to 1,341.21, 2,012.66 and 725.34 is: 1,088.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.21 : 2,012.66 = 725.34 : x
  2. Step 2: Convert to fraction form
    1,341.21/2,012.66 = 725.34/x
  3. Step 3: Cross multiply
    1,341.21x = 2,012.66 × 725.34
  4. Step 4: Simplify right side
    1,341.21x = 1,459,859.18
  5. Step 5: Solve for x
    x = 1,459,859.18/1,341.21
  6. Step 6: Final answer
    x = 1,088.46

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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.