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Finding the Fourth Proportional to 2,648.99, 3,968.93 and 1,867.59

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Solution

The fourth proportional to 2,648.99, 3,968.93 and 1,867.59 is: 2,798.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.99 : 3,968.93 = 1,867.59 : x
  2. Step 2: Convert to fraction form
    2,648.99/3,968.93 = 1,867.59/x
  3. Step 3: Cross multiply
    2,648.99x = 3,968.93 × 1,867.59
  4. Step 4: Simplify right side
    2,648.99x = 7,412,324.64
  5. Step 5: Solve for x
    x = 7,412,324.64/2,648.99
  6. Step 6: Final answer
    x = 2,798.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.