Home / 2,975.26-4,107.18-1,927.84

Finding the Fourth Proportional to 2,975.26, 4,107.18 and 1,927.84

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Solution

The fourth proportional to 2,975.26, 4,107.18 and 1,927.84 is: 2,661.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.26 : 4,107.18 = 1,927.84 : x
  2. Step 2: Convert to fraction form
    2,975.26/4,107.18 = 1,927.84/x
  3. Step 3: Cross multiply
    2,975.26x = 4,107.18 × 1,927.84
  4. Step 4: Simplify right side
    2,975.26x = 7,917,985.89
  5. Step 5: Solve for x
    x = 7,917,985.89/2,975.26
  6. Step 6: Final answer
    x = 2,661.28

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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.