Home / 7,427.29-11,140.80-2,986.91

Finding the Fourth Proportional to 7,427.29, 11,140.80 and 2,986.91

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Solution

The fourth proportional to 7,427.29, 11,140.80 and 2,986.91 is: 4,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.29 : 11,140.80 = 2,986.91 : x
  2. Step 2: Convert to fraction form
    7,427.29/11,140.80 = 2,986.91/x
  3. Step 3: Cross multiply
    7,427.29x = 11,140.80 × 2,986.91
  4. Step 4: Simplify right side
    7,427.29x = 33,276,566.93
  5. Step 5: Solve for x
    x = 33,276,566.93/7,427.29
  6. Step 6: Final answer
    x = 4,480.31

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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.