Home / 3,301.70-4,557.21-1,976.90

Finding the Fourth Proportional to 3,301.70, 4,557.21 and 1,976.90

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Solution

The fourth proportional to 3,301.70, 4,557.21 and 1,976.90 is: 2,728.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,301.70 : 4,557.21 = 1,976.90 : x
  2. Step 2: Convert to fraction form
    3,301.70/4,557.21 = 1,976.90/x
  3. Step 3: Cross multiply
    3,301.70x = 4,557.21 × 1,976.90
  4. Step 4: Simplify right side
    3,301.70x = 9,009,148.45
  5. Step 5: Solve for x
    x = 9,009,148.45/3,301.70
  6. Step 6: Final answer
    x = 2,728.64

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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.