Home / 3,621.09-5,432.04-1,155.35

Finding the Fourth Proportional to 3,621.09, 5,432.04 and 1,155.35

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Solution

The fourth proportional to 3,621.09, 5,432.04 and 1,155.35 is: 1,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.09 : 5,432.04 = 1,155.35 : x
  2. Step 2: Convert to fraction form
    3,621.09/5,432.04 = 1,155.35/x
  3. Step 3: Cross multiply
    3,621.09x = 5,432.04 × 1,155.35
  4. Step 4: Simplify right side
    3,621.09x = 6,275,907.41
  5. Step 5: Solve for x
    x = 6,275,907.41/3,621.09
  6. Step 6: Final answer
    x = 1,733.15

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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.