Home / 2,648.75-3,653.66-1,903.72

Finding the Fourth Proportional to 2,648.75, 3,653.66 and 1,903.72

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Solution

The fourth proportional to 2,648.75, 3,653.66 and 1,903.72 is: 2,625.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.75 : 3,653.66 = 1,903.72 : x
  2. Step 2: Convert to fraction form
    2,648.75/3,653.66 = 1,903.72/x
  3. Step 3: Cross multiply
    2,648.75x = 3,653.66 × 1,903.72
  4. Step 4: Simplify right side
    2,648.75x = 6,955,521.97
  5. Step 5: Solve for x
    x = 6,955,521.97/2,648.75
  6. Step 6: Final answer
    x = 2,625.97

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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.