Home / 7,381.89-10,187.37-4,239.09

Finding the Fourth Proportional to 7,381.89, 10,187.37 and 4,239.09

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Solution

The fourth proportional to 7,381.89, 10,187.37 and 4,239.09 is: 5,850.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.89 : 10,187.37 = 4,239.09 : x
  2. Step 2: Convert to fraction form
    7,381.89/10,187.37 = 4,239.09/x
  3. Step 3: Cross multiply
    7,381.89x = 10,187.37 × 4,239.09
  4. Step 4: Simplify right side
    7,381.89x = 43,185,178.29
  5. Step 5: Solve for x
    x = 43,185,178.29/7,381.89
  6. Step 6: Final answer
    x = 5,850.15

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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.