Home / 2,835.39-3,912.86-1,576.45

Finding the Fourth Proportional to 2,835.39, 3,912.86 and 1,576.45

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Solution

The fourth proportional to 2,835.39, 3,912.86 and 1,576.45 is: 2,175.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.39 : 3,912.86 = 1,576.45 : x
  2. Step 2: Convert to fraction form
    2,835.39/3,912.86 = 1,576.45/x
  3. Step 3: Cross multiply
    2,835.39x = 3,912.86 × 1,576.45
  4. Step 4: Simplify right side
    2,835.39x = 6,168,428.15
  5. Step 5: Solve for x
    x = 6,168,428.15/2,835.39
  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.