Home / 7,328.26-10,112.99-3,971.16

Finding the Fourth Proportional to 7,328.26, 10,112.99 and 3,971.16

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Solution

The fourth proportional to 7,328.26, 10,112.99 and 3,971.16 is: 5,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.26 : 10,112.99 = 3,971.16 : x
  2. Step 2: Convert to fraction form
    7,328.26/10,112.99 = 3,971.16/x
  3. Step 3: Cross multiply
    7,328.26x = 10,112.99 × 3,971.16
  4. Step 4: Simplify right side
    7,328.26x = 40,160,301.37
  5. Step 5: Solve for x
    x = 40,160,301.37/7,328.26
  6. Step 6: Final answer
    x = 5,480.20

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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.