Home / 2,177.36-3,004.31-1,380.99

Finding the Fourth Proportional to 2,177.36, 3,004.31 and 1,380.99

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Solution

The fourth proportional to 2,177.36, 3,004.31 and 1,380.99 is: 1,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.36 : 3,004.31 = 1,380.99 : x
  2. Step 2: Convert to fraction form
    2,177.36/3,004.31 = 1,380.99/x
  3. Step 3: Cross multiply
    2,177.36x = 3,004.31 × 1,380.99
  4. Step 4: Simplify right side
    2,177.36x = 4,148,915.16
  5. Step 5: Solve for x
    x = 4,148,915.16/2,177.36
  6. Step 6: Final answer
    x = 1,905.48

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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.