Home / 5,147.52-7,715.31-2,368.36

Finding the Fourth Proportional to 5,147.52, 7,715.31 and 2,368.36

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Solution

The fourth proportional to 5,147.52, 7,715.31 and 2,368.36 is: 3,549.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.52 : 7,715.31 = 2,368.36 : x
  2. Step 2: Convert to fraction form
    5,147.52/7,715.31 = 2,368.36/x
  3. Step 3: Cross multiply
    5,147.52x = 7,715.31 × 2,368.36
  4. Step 4: Simplify right side
    5,147.52x = 18,272,587.09
  5. Step 5: Solve for x
    x = 18,272,587.09/5,147.52
  6. Step 6: Final answer
    x = 3,549.79

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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.