Home / 2,902.31-4,005.21-1,576.02

Finding the Fourth Proportional to 2,902.31, 4,005.21 and 1,576.02

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Solution

The fourth proportional to 2,902.31, 4,005.21 and 1,576.02 is: 2,174.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.31 : 4,005.21 = 1,576.02 : x
  2. Step 2: Convert to fraction form
    2,902.31/4,005.21 = 1,576.02/x
  3. Step 3: Cross multiply
    2,902.31x = 4,005.21 × 1,576.02
  4. Step 4: Simplify right side
    2,902.31x = 6,312,277.11
  5. Step 5: Solve for x
    x = 6,312,277.11/2,902.31
  6. Step 6: Final answer
    x = 2,174.91

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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.