Home / 2,069.07-2,855.95-1,272.64

Finding the Fourth Proportional to 2,069.07, 2,855.95 and 1,272.64

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Solution

The fourth proportional to 2,069.07, 2,855.95 and 1,272.64 is: 1,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.07 : 2,855.95 = 1,272.64 : x
  2. Step 2: Convert to fraction form
    2,069.07/2,855.95 = 1,272.64/x
  3. Step 3: Cross multiply
    2,069.07x = 2,855.95 × 1,272.64
  4. Step 4: Simplify right side
    2,069.07x = 3,634,581.93
  5. Step 5: Solve for x
    x = 3,634,581.93/2,069.07
  6. Step 6: Final answer
    x = 1,756.63

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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.