Home / 7,220.51-9,964.38-4,236.39

Finding the Fourth Proportional to 7,220.51, 9,964.38 and 4,236.39

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Solution

The fourth proportional to 7,220.51, 9,964.38 and 4,236.39 is: 5,846.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.51 : 9,964.38 = 4,236.39 : x
  2. Step 2: Convert to fraction form
    7,220.51/9,964.38 = 4,236.39/x
  3. Step 3: Cross multiply
    7,220.51x = 9,964.38 × 4,236.39
  4. Step 4: Simplify right side
    7,220.51x = 42,212,999.79
  5. Step 5: Solve for x
    x = 42,212,999.79/7,220.51
  6. Step 6: Final answer
    x = 5,846.27

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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.