Home / 3,435.90-5,155.96-1,355.55

Finding the Fourth Proportional to 3,435.90, 5,155.96 and 1,355.55

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Solution

The fourth proportional to 3,435.90, 5,155.96 and 1,355.55 is: 2,034.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.90 : 5,155.96 = 1,355.55 : x
  2. Step 2: Convert to fraction form
    3,435.90/5,155.96 = 1,355.55/x
  3. Step 3: Cross multiply
    3,435.90x = 5,155.96 × 1,355.55
  4. Step 4: Simplify right side
    3,435.90x = 6,989,161.58
  5. Step 5: Solve for x
    x = 6,989,161.58/3,435.90
  6. Step 6: Final answer
    x = 2,034.16

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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.