Home / 3,157.77-4,356.56-1,898.36

Finding the Fourth Proportional to 3,157.77, 4,356.56 and 1,898.36

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Solution

The fourth proportional to 3,157.77, 4,356.56 and 1,898.36 is: 2,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.77 : 4,356.56 = 1,898.36 : x
  2. Step 2: Convert to fraction form
    3,157.77/4,356.56 = 1,898.36/x
  3. Step 3: Cross multiply
    3,157.77x = 4,356.56 × 1,898.36
  4. Step 4: Simplify right side
    3,157.77x = 8,270,287.97
  5. Step 5: Solve for x
    x = 8,270,287.97/3,157.77
  6. Step 6: Final answer
    x = 2,619.03

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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.