Home / 7,419.90-10,239.36-4,062.70

Finding the Fourth Proportional to 7,419.90, 10,239.36 and 4,062.70

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Solution

The fourth proportional to 7,419.90, 10,239.36 and 4,062.70 is: 5,606.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.90 : 10,239.36 = 4,062.70 : x
  2. Step 2: Convert to fraction form
    7,419.90/10,239.36 = 4,062.70/x
  3. Step 3: Cross multiply
    7,419.90x = 10,239.36 × 4,062.70
  4. Step 4: Simplify right side
    7,419.90x = 41,599,447.87
  5. Step 5: Solve for x
    x = 41,599,447.87/7,419.90
  6. Step 6: Final answer
    x = 5,606.47

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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.