Home / 3,537.78-5,307.57-2,078.16

Finding the Fourth Proportional to 3,537.78, 5,307.57 and 2,078.16

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Solution

The fourth proportional to 3,537.78, 5,307.57 and 2,078.16 is: 3,117.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,537.78 : 5,307.57 = 2,078.16 : x
  2. Step 2: Convert to fraction form
    3,537.78/5,307.57 = 2,078.16/x
  3. Step 3: Cross multiply
    3,537.78x = 5,307.57 × 2,078.16
  4. Step 4: Simplify right side
    3,537.78x = 11,029,979.67
  5. Step 5: Solve for x
    x = 11,029,979.67/3,537.78
  6. Step 6: Final answer
    x = 3,117.77

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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.