Home / 2,735.12-4,098.36-2,122.40

Finding the Fourth Proportional to 2,735.12, 4,098.36 and 2,122.40

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Solution

The fourth proportional to 2,735.12, 4,098.36 and 2,122.40 is: 3,180.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,735.12 : 4,098.36 = 2,122.40 : x
  2. Step 2: Convert to fraction form
    2,735.12/4,098.36 = 2,122.40/x
  3. Step 3: Cross multiply
    2,735.12x = 4,098.36 × 2,122.40
  4. Step 4: Simplify right side
    2,735.12x = 8,698,359.26
  5. Step 5: Solve for x
    x = 8,698,359.26/2,735.12
  6. Step 6: Final answer
    x = 3,180.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.