Home / 3,145.72-4,706.16-2,776.36

Finding the Fourth Proportional to 3,145.72, 4,706.16 and 2,776.36

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Solution

The fourth proportional to 3,145.72, 4,706.16 and 2,776.36 is: 4,153.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.72 : 4,706.16 = 2,776.36 : x
  2. Step 2: Convert to fraction form
    3,145.72/4,706.16 = 2,776.36/x
  3. Step 3: Cross multiply
    3,145.72x = 4,706.16 × 2,776.36
  4. Step 4: Simplify right side
    3,145.72x = 13,065,994.38
  5. Step 5: Solve for x
    x = 13,065,994.38/3,145.72
  6. Step 6: Final answer
    x = 4,153.58

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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.