Home / 3,420.96-5,130.56-1,341.04

Finding the Fourth Proportional to 3,420.96, 5,130.56 and 1,341.04

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Solution

The fourth proportional to 3,420.96, 5,130.56 and 1,341.04 is: 2,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.96 : 5,130.56 = 1,341.04 : x
  2. Step 2: Convert to fraction form
    3,420.96/5,130.56 = 1,341.04/x
  3. Step 3: Cross multiply
    3,420.96x = 5,130.56 × 1,341.04
  4. Step 4: Simplify right side
    3,420.96x = 6,880,286.18
  5. Step 5: Solve for x
    x = 6,880,286.18/3,420.96
  6. Step 6: Final answer
    x = 2,011.22

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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.