Home / 1,933.47-2,669.41-1,271.45

Finding the Fourth Proportional to 1,933.47, 2,669.41 and 1,271.45

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Solution

The fourth proportional to 1,933.47, 2,669.41 and 1,271.45 is: 1,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.47 : 2,669.41 = 1,271.45 : x
  2. Step 2: Convert to fraction form
    1,933.47/2,669.41 = 1,271.45/x
  3. Step 3: Cross multiply
    1,933.47x = 2,669.41 × 1,271.45
  4. Step 4: Simplify right side
    1,933.47x = 3,394,007.44
  5. Step 5: Solve for x
    x = 3,394,007.44/1,933.47
  6. Step 6: Final answer
    x = 1,755.40

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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.