Home / 5,156.21-7,735.27-2,345.25

Finding the Fourth Proportional to 5,156.21, 7,735.27 and 2,345.25

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Solution

The fourth proportional to 5,156.21, 7,735.27 and 2,345.25 is: 3,518.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.21 : 7,735.27 = 2,345.25 : x
  2. Step 2: Convert to fraction form
    5,156.21/7,735.27 = 2,345.25/x
  3. Step 3: Cross multiply
    5,156.21x = 7,735.27 × 2,345.25
  4. Step 4: Simplify right side
    5,156.21x = 18,141,176.11
  5. Step 5: Solve for x
    x = 18,141,176.11/5,156.21
  6. Step 6: Final answer
    x = 3,518.32

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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.