Home / 3,101.06-4,277.93-2,878.70

Finding the Fourth Proportional to 3,101.06, 4,277.93 and 2,878.70

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Solution

The fourth proportional to 3,101.06, 4,277.93 and 2,878.70 is: 3,971.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.06 : 4,277.93 = 2,878.70 : x
  2. Step 2: Convert to fraction form
    3,101.06/4,277.93 = 2,878.70/x
  3. Step 3: Cross multiply
    3,101.06x = 4,277.93 × 2,878.70
  4. Step 4: Simplify right side
    3,101.06x = 12,314,877.09
  5. Step 5: Solve for x
    x = 12,314,877.09/3,101.06
  6. Step 6: Final answer
    x = 3,971.18

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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.