Home / 3,156.56-4,355.54-1,897.31

Finding the Fourth Proportional to 3,156.56, 4,355.54 and 1,897.31

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Solution

The fourth proportional to 3,156.56, 4,355.54 and 1,897.31 is: 2,617.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.56 : 4,355.54 = 1,897.31 : x
  2. Step 2: Convert to fraction form
    3,156.56/4,355.54 = 1,897.31/x
  3. Step 3: Cross multiply
    3,156.56x = 4,355.54 × 1,897.31
  4. Step 4: Simplify right side
    3,156.56x = 8,263,825.23
  5. Step 5: Solve for x
    x = 8,263,825.23/3,156.56
  6. Step 6: Final answer
    x = 2,617.98

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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.