Home / 2,128.05-3,192.08-1,032.58

Finding the Fourth Proportional to 2,128.05, 3,192.08 and 1,032.58

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Solution

The fourth proportional to 2,128.05, 3,192.08 and 1,032.58 is: 1,548.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.05 : 3,192.08 = 1,032.58 : x
  2. Step 2: Convert to fraction form
    2,128.05/3,192.08 = 1,032.58/x
  3. Step 3: Cross multiply
    2,128.05x = 3,192.08 × 1,032.58
  4. Step 4: Simplify right side
    2,128.05x = 3,296,056.84
  5. Step 5: Solve for x
    x = 3,296,056.84/2,128.05
  6. Step 6: Final answer
    x = 1,548.87

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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.