Home / 3,436.85-5,155.28-1,488.60

Finding the Fourth Proportional to 3,436.85, 5,155.28 and 1,488.60

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Solution

The fourth proportional to 3,436.85, 5,155.28 and 1,488.60 is: 2,232.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.85 : 5,155.28 = 1,488.60 : x
  2. Step 2: Convert to fraction form
    3,436.85/5,155.28 = 1,488.60/x
  3. Step 3: Cross multiply
    3,436.85x = 5,155.28 × 1,488.60
  4. Step 4: Simplify right side
    3,436.85x = 7,674,149.81
  5. Step 5: Solve for x
    x = 7,674,149.81/3,436.85
  6. Step 6: Final answer
    x = 2,232.90

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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.