Home / 7,938.72-10,955.34-4,401.90

Finding the Fourth Proportional to 7,938.72, 10,955.34 and 4,401.90

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Solution

The fourth proportional to 7,938.72, 10,955.34 and 4,401.90 is: 6,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.72 : 10,955.34 = 4,401.90 : x
  2. Step 2: Convert to fraction form
    7,938.72/10,955.34 = 4,401.90/x
  3. Step 3: Cross multiply
    7,938.72x = 10,955.34 × 4,401.90
  4. Step 4: Simplify right side
    7,938.72x = 48,224,311.15
  5. Step 5: Solve for x
    x = 48,224,311.15/7,938.72
  6. Step 6: Final answer
    x = 6,074.57

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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.