Home / 3,127.95-4,690.56-936.26

Finding the Fourth Proportional to 3,127.95, 4,690.56 and 936.26

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Solution

The fourth proportional to 3,127.95, 4,690.56 and 936.26 is: 1,403.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.95 : 4,690.56 = 936.26 : x
  2. Step 2: Convert to fraction form
    3,127.95/4,690.56 = 936.26/x
  3. Step 3: Cross multiply
    3,127.95x = 4,690.56 × 936.26
  4. Step 4: Simplify right side
    3,127.95x = 4,391,576.09
  5. Step 5: Solve for x
    x = 4,391,576.09/3,127.95
  6. Step 6: Final answer
    x = 1,403.98

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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.