Home / 7,328.75-10,113.66-3,971.50

Finding the Fourth Proportional to 7,328.75, 10,113.66 and 3,971.50

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Solution

The fourth proportional to 7,328.75, 10,113.66 and 3,971.50 is: 5,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.75 : 10,113.66 = 3,971.50 : x
  2. Step 2: Convert to fraction form
    7,328.75/10,113.66 = 3,971.50/x
  3. Step 3: Cross multiply
    7,328.75x = 10,113.66 × 3,971.50
  4. Step 4: Simplify right side
    7,328.75x = 40,166,375.41
  5. Step 5: Solve for x
    x = 40,166,375.41/7,328.75
  6. Step 6: Final answer
    x = 5,480.66

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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.