Home / 2,069.07-3,101.62-1,326.40

Finding the Fourth Proportional to 2,069.07, 3,101.62 and 1,326.40

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Solution

The fourth proportional to 2,069.07, 3,101.62 and 1,326.40 is: 1,988.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.07 : 3,101.62 = 1,326.40 : x
  2. Step 2: Convert to fraction form
    2,069.07/3,101.62 = 1,326.40/x
  3. Step 3: Cross multiply
    2,069.07x = 3,101.62 × 1,326.40
  4. Step 4: Simplify right side
    2,069.07x = 4,113,988.77
  5. Step 5: Solve for x
    x = 4,113,988.77/2,069.07
  6. Step 6: Final answer
    x = 1,988.33

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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.