Home / 4,790.88-7,185.24-1,328.40

Finding the Fourth Proportional to 4,790.88, 7,185.24 and 1,328.40

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Solution

The fourth proportional to 4,790.88, 7,185.24 and 1,328.40 is: 1,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790.88 : 7,185.24 = 1,328.40 : x
  2. Step 2: Convert to fraction form
    4,790.88/7,185.24 = 1,328.40/x
  3. Step 3: Cross multiply
    4,790.88x = 7,185.24 × 1,328.40
  4. Step 4: Simplify right side
    4,790.88x = 9,544,872.82
  5. Step 5: Solve for x
    x = 9,544,872.82/4,790.88
  6. Step 6: Final answer
    x = 1,992.30

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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.