Home / 3,157.34-4,355.36-1,976.36

Finding the Fourth Proportional to 3,157.34, 4,355.36 and 1,976.36

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Solution

The fourth proportional to 3,157.34, 4,355.36 and 1,976.36 is: 2,726.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.34 : 4,355.36 = 1,976.36 : x
  2. Step 2: Convert to fraction form
    3,157.34/4,355.36 = 1,976.36/x
  3. Step 3: Cross multiply
    3,157.34x = 4,355.36 × 1,976.36
  4. Step 4: Simplify right side
    3,157.34x = 8,607,760.30
  5. Step 5: Solve for x
    x = 8,607,760.30/3,157.34
  6. Step 6: Final answer
    x = 2,726.27

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1.5x scale

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.