Home / 3,112.16-4,293.95-1,853.28

Finding the Fourth Proportional to 3,112.16, 4,293.95 and 1,853.28

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Solution

The fourth proportional to 3,112.16, 4,293.95 and 1,853.28 is: 2,557.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.16 : 4,293.95 = 1,853.28 : x
  2. Step 2: Convert to fraction form
    3,112.16/4,293.95 = 1,853.28/x
  3. Step 3: Cross multiply
    3,112.16x = 4,293.95 × 1,853.28
  4. Step 4: Simplify right side
    3,112.16x = 7,957,882.39
  5. Step 5: Solve for x
    x = 7,957,882.39/3,112.16
  6. Step 6: Final answer
    x = 2,557.03

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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.