Home / 5,643.58-7,790.80-3,758.30

Finding the Fourth Proportional to 5,643.58, 7,790.80 and 3,758.30

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Solution

The fourth proportional to 5,643.58, 7,790.80 and 3,758.30 is: 5,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.58 : 7,790.80 = 3,758.30 : x
  2. Step 2: Convert to fraction form
    5,643.58/7,790.80 = 3,758.30/x
  3. Step 3: Cross multiply
    5,643.58x = 7,790.80 × 3,758.30
  4. Step 4: Simplify right side
    5,643.58x = 29,280,163.64
  5. Step 5: Solve for x
    x = 29,280,163.64/5,643.58
  6. Step 6: Final answer
    x = 5,188.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.