Home / 2,980.40-4,113.08-2,096.48

Finding the Fourth Proportional to 2,980.40, 4,113.08 and 2,096.48

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Solution

The fourth proportional to 2,980.40, 4,113.08 and 2,096.48 is: 2,893.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.40 : 4,113.08 = 2,096.48 : x
  2. Step 2: Convert to fraction form
    2,980.40/4,113.08 = 2,096.48/x
  3. Step 3: Cross multiply
    2,980.40x = 4,113.08 × 2,096.48
  4. Step 4: Simplify right side
    2,980.40x = 8,622,997.62
  5. Step 5: Solve for x
    x = 8,622,997.62/2,980.40
  6. Step 6: Final answer
    x = 2,893.24

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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.