Home / 5,238.36-7,222.23-4,290.66

Finding the Fourth Proportional to 5,238.36, 7,222.23 and 4,290.66

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Solution

The fourth proportional to 5,238.36, 7,222.23 and 4,290.66 is: 5,915.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.36 : 7,222.23 = 4,290.66 : x
  2. Step 2: Convert to fraction form
    5,238.36/7,222.23 = 4,290.66/x
  3. Step 3: Cross multiply
    5,238.36x = 7,222.23 × 4,290.66
  4. Step 4: Simplify right side
    5,238.36x = 30,988,133.37
  5. Step 5: Solve for x
    x = 30,988,133.37/5,238.36
  6. Step 6: Final answer
    x = 5,915.62

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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.