Home / 3,621.58-5,436.80-2,390.02

Finding the Fourth Proportional to 3,621.58, 5,436.80 and 2,390.02

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Solution

The fourth proportional to 3,621.58, 5,436.80 and 2,390.02 is: 3,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.58 : 5,436.80 = 2,390.02 : x
  2. Step 2: Convert to fraction form
    3,621.58/5,436.80 = 2,390.02/x
  3. Step 3: Cross multiply
    3,621.58x = 5,436.80 × 2,390.02
  4. Step 4: Simplify right side
    3,621.58x = 12,994,060.74
  5. Step 5: Solve for x
    x = 12,994,060.74/3,621.58
  6. Step 6: Final answer
    x = 3,587.95

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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.