Home / 2,908.30-4,012.47-1,914.58

Finding the Fourth Proportional to 2,908.30, 4,012.47 and 1,914.58

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Solution

The fourth proportional to 2,908.30, 4,012.47 and 1,914.58 is: 2,641.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.30 : 4,012.47 = 1,914.58 : x
  2. Step 2: Convert to fraction form
    2,908.30/4,012.47 = 1,914.58/x
  3. Step 3: Cross multiply
    2,908.30x = 4,012.47 × 1,914.58
  4. Step 4: Simplify right side
    2,908.30x = 7,682,194.81
  5. Step 5: Solve for x
    x = 7,682,194.81/2,908.30
  6. Step 6: Final answer
    x = 2,641.47

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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.