Home / 3,038.40-4,192.72-1,693.96

Finding the Fourth Proportional to 3,038.40, 4,192.72 and 1,693.96

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Solution

The fourth proportional to 3,038.40, 4,192.72 and 1,693.96 is: 2,337.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.40 : 4,192.72 = 1,693.96 : x
  2. Step 2: Convert to fraction form
    3,038.40/4,192.72 = 1,693.96/x
  3. Step 3: Cross multiply
    3,038.40x = 4,192.72 × 1,693.96
  4. Step 4: Simplify right side
    3,038.40x = 7,102,299.97
  5. Step 5: Solve for x
    x = 7,102,299.97/3,038.40
  6. Step 6: Final answer
    x = 2,337.51

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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.