Home / 2,100.12-3,126.75-2,071.02

Finding the Fourth Proportional to 2,100.12, 3,126.75 and 2,071.02

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Solution

The fourth proportional to 2,100.12, 3,126.75 and 2,071.02 is: 3,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100.12 : 3,126.75 = 2,071.02 : x
  2. Step 2: Convert to fraction form
    2,100.12/3,126.75 = 2,071.02/x
  3. Step 3: Cross multiply
    2,100.12x = 3,126.75 × 2,071.02
  4. Step 4: Simplify right side
    2,100.12x = 6,475,561.79
  5. Step 5: Solve for x
    x = 6,475,561.79/2,100.12
  6. Step 6: Final answer
    x = 3,083.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.