Home / 3,435.40-5,155.21-1,355.04

Finding the Fourth Proportional to 3,435.40, 5,155.21 and 1,355.04

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Solution

The fourth proportional to 3,435.40, 5,155.21 and 1,355.04 is: 2,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.40 : 5,155.21 = 1,355.04 : x
  2. Step 2: Convert to fraction form
    3,435.40/5,155.21 = 1,355.04/x
  3. Step 3: Cross multiply
    3,435.40x = 5,155.21 × 1,355.04
  4. Step 4: Simplify right side
    3,435.40x = 6,985,515.76
  5. Step 5: Solve for x
    x = 6,985,515.76/3,435.40
  6. Step 6: Final answer
    x = 2,033.39

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1.5x scale

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.