Home / 3,782.51-5,673.78-1,316.75

Finding the Fourth Proportional to 3,782.51, 5,673.78 and 1,316.75

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Solution

The fourth proportional to 3,782.51, 5,673.78 and 1,316.75 is: 1,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.51 : 5,673.78 = 1,316.75 : x
  2. Step 2: Convert to fraction form
    3,782.51/5,673.78 = 1,316.75/x
  3. Step 3: Cross multiply
    3,782.51x = 5,673.78 × 1,316.75
  4. Step 4: Simplify right side
    3,782.51x = 7,470,949.82
  5. Step 5: Solve for x
    x = 7,470,949.82/3,782.51
  6. Step 6: Final answer
    x = 1,975.13

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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.