Home / 3,840.65-5,302.35-3,619.22

Finding the Fourth Proportional to 3,840.65, 5,302.35 and 3,619.22

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Solution

The fourth proportional to 3,840.65, 5,302.35 and 3,619.22 is: 4,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.65 : 5,302.35 = 3,619.22 : x
  2. Step 2: Convert to fraction form
    3,840.65/5,302.35 = 3,619.22/x
  3. Step 3: Cross multiply
    3,840.65x = 5,302.35 × 3,619.22
  4. Step 4: Simplify right side
    3,840.65x = 19,190,344.66
  5. Step 5: Solve for x
    x = 19,190,344.66/3,840.65
  6. Step 6: Final answer
    x = 4,996.65

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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.