Home / 3,117.06-4,304.07-2,976.12

Finding the Fourth Proportional to 3,117.06, 4,304.07 and 2,976.12

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Solution

The fourth proportional to 3,117.06, 4,304.07 and 2,976.12 is: 4,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.06 : 4,304.07 = 2,976.12 : x
  2. Step 2: Convert to fraction form
    3,117.06/4,304.07 = 2,976.12/x
  3. Step 3: Cross multiply
    3,117.06x = 4,304.07 × 2,976.12
  4. Step 4: Simplify right side
    3,117.06x = 12,809,428.81
  5. Step 5: Solve for x
    x = 12,809,428.81/3,117.06
  6. Step 6: Final answer
    x = 4,109.46

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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.