Home / 2,948.94-4,065.33-2,109.34

Finding the Fourth Proportional to 2,948.94, 4,065.33 and 2,109.34

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Solution

The fourth proportional to 2,948.94, 4,065.33 and 2,109.34 is: 2,907.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.94 : 4,065.33 = 2,109.34 : x
  2. Step 2: Convert to fraction form
    2,948.94/4,065.33 = 2,109.34/x
  3. Step 3: Cross multiply
    2,948.94x = 4,065.33 × 2,109.34
  4. Step 4: Simplify right side
    2,948.94x = 8,575,163.18
  5. Step 5: Solve for x
    x = 8,575,163.18/2,948.94
  6. Step 6: Final answer
    x = 2,907.88

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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.