Home / 5,181.16-7,150-3,056.72

Finding the Fourth Proportional to 5,181.16, 7,150 and 3,056.72

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Solution

The fourth proportional to 5,181.16, 7,150 and 3,056.72 is: 4,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.16 : 7,150 = 3,056.72 : x
  2. Step 2: Convert to fraction form
    5,181.16/7,150 = 3,056.72/x
  3. Step 3: Cross multiply
    5,181.16x = 7,150 × 3,056.72
  4. Step 4: Simplify right side
    5,181.16x = 21,855,548
  5. Step 5: Solve for x
    x = 21,855,548/5,181.16
  6. Step 6: Final answer
    x = 4,218.27

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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.