Home / 2,928.77-4,393.16-2,112.23

Finding the Fourth Proportional to 2,928.77, 4,393.16 and 2,112.23

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Solution

The fourth proportional to 2,928.77, 4,393.16 and 2,112.23 is: 3,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.77 : 4,393.16 = 2,112.23 : x
  2. Step 2: Convert to fraction form
    2,928.77/4,393.16 = 2,112.23/x
  3. Step 3: Cross multiply
    2,928.77x = 4,393.16 × 2,112.23
  4. Step 4: Simplify right side
    2,928.77x = 9,279,364.35
  5. Step 5: Solve for x
    x = 9,279,364.35/2,928.77
  6. Step 6: Final answer
    x = 3,168.35

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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.