Home / 5,243.83-7,236.40-3,005.65

Finding the Fourth Proportional to 5,243.83, 7,236.40 and 3,005.65

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Solution

The fourth proportional to 5,243.83, 7,236.40 and 3,005.65 is: 4,147.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.83 : 7,236.40 = 3,005.65 : x
  2. Step 2: Convert to fraction form
    5,243.83/7,236.40 = 3,005.65/x
  3. Step 3: Cross multiply
    5,243.83x = 7,236.40 × 3,005.65
  4. Step 4: Simplify right side
    5,243.83x = 21,750,085.66
  5. Step 5: Solve for x
    x = 21,750,085.66/5,243.83
  6. Step 6: Final answer
    x = 4,147.75

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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.