Home / 2,290.21-3,436.08-730.48

Finding the Fourth Proportional to 2,290.21, 3,436.08 and 730.48

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Solution

The fourth proportional to 2,290.21, 3,436.08 and 730.48 is: 1,095.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.21 : 3,436.08 = 730.48 : x
  2. Step 2: Convert to fraction form
    2,290.21/3,436.08 = 730.48/x
  3. Step 3: Cross multiply
    2,290.21x = 3,436.08 × 730.48
  4. Step 4: Simplify right side
    2,290.21x = 2,509,987.72
  5. Step 5: Solve for x
    x = 2,509,987.72/2,290.21
  6. Step 6: Final answer
    x = 1,095.96

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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.