Home / 2,119.56-2,930.26-2,100.12

Finding the Fourth Proportional to 2,119.56, 2,930.26 and 2,100.12

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Solution

The fourth proportional to 2,119.56, 2,930.26 and 2,100.12 is: 2,903.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.56 : 2,930.26 = 2,100.12 : x
  2. Step 2: Convert to fraction form
    2,119.56/2,930.26 = 2,100.12/x
  3. Step 3: Cross multiply
    2,119.56x = 2,930.26 × 2,100.12
  4. Step 4: Simplify right side
    2,119.56x = 6,153,897.63
  5. Step 5: Solve for x
    x = 6,153,897.63/2,119.56
  6. Step 6: Final answer
    x = 2,903.38

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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.