Home / 2,902.73-4,005.78-1,576.45

Finding the Fourth Proportional to 2,902.73, 4,005.78 and 1,576.45

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Solution

The fourth proportional to 2,902.73, 4,005.78 and 1,576.45 is: 2,175.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.73 : 4,005.78 = 1,576.45 : x
  2. Step 2: Convert to fraction form
    2,902.73/4,005.78 = 1,576.45/x
  3. Step 3: Cross multiply
    2,902.73x = 4,005.78 × 1,576.45
  4. Step 4: Simplify right side
    2,902.73x = 6,314,911.88
  5. Step 5: Solve for x
    x = 6,314,911.88/2,902.73
  6. Step 6: Final answer
    x = 2,175.51

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1.5x scale

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.