Home / 3,917.07-5,875.74-1,968.21

Finding the Fourth Proportional to 3,917.07, 5,875.74 and 1,968.21

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Solution

The fourth proportional to 3,917.07, 5,875.74 and 1,968.21 is: 2,952.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.07 : 5,875.74 = 1,968.21 : x
  2. Step 2: Convert to fraction form
    3,917.07/5,875.74 = 1,968.21/x
  3. Step 3: Cross multiply
    3,917.07x = 5,875.74 × 1,968.21
  4. Step 4: Simplify right side
    3,917.07x = 11,564,690.23
  5. Step 5: Solve for x
    x = 11,564,690.23/3,917.07
  6. Step 6: Final answer
    x = 2,952.38

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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.