Home / 7,328.26-10,112.98-3,971.16

Finding the Fourth Proportional to 7,328.26, 10,112.98 and 3,971.16

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Solution

The fourth proportional to 7,328.26, 10,112.98 and 3,971.16 is: 5,480.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.26 : 10,112.98 = 3,971.16 : x
  2. Step 2: Convert to fraction form
    7,328.26/10,112.98 = 3,971.16/x
  3. Step 3: Cross multiply
    7,328.26x = 10,112.98 × 3,971.16
  4. Step 4: Simplify right side
    7,328.26x = 40,160,261.66
  5. Step 5: Solve for x
    x = 40,160,261.66/7,328.26
  6. Step 6: Final answer
    x = 5,480.19

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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.