Home / 3,435.52-5,155.40-1,355.16

Finding the Fourth Proportional to 3,435.52, 5,155.40 and 1,355.16

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Solution

The fourth proportional to 3,435.52, 5,155.40 and 1,355.16 is: 2,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.52 : 5,155.40 = 1,355.16 : x
  2. Step 2: Convert to fraction form
    3,435.52/5,155.40 = 1,355.16/x
  3. Step 3: Cross multiply
    3,435.52x = 5,155.40 × 1,355.16
  4. Step 4: Simplify right side
    3,435.52x = 6,986,391.86
  5. Step 5: Solve for x
    x = 6,986,391.86/3,435.52
  6. Step 6: Final answer
    x = 2,033.58

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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.