Home / 6,985.46-10,485.07-5,131.37

Finding the Fourth Proportional to 6,985.46, 10,485.07 and 5,131.37

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Solution

The fourth proportional to 6,985.46, 10,485.07 and 5,131.37 is: 7,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.46 : 10,485.07 = 5,131.37 : x
  2. Step 2: Convert to fraction form
    6,985.46/10,485.07 = 5,131.37/x
  3. Step 3: Cross multiply
    6,985.46x = 10,485.07 × 5,131.37
  4. Step 4: Simplify right side
    6,985.46x = 53,802,721.22
  5. Step 5: Solve for x
    x = 53,802,721.22/6,985.46
  6. Step 6: Final answer
    x = 7,702.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.