Home / 4,969.95-7,450.29-1,680.75

Finding the Fourth Proportional to 4,969.95, 7,450.29 and 1,680.75

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Solution

The fourth proportional to 4,969.95, 7,450.29 and 1,680.75 is: 2,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.95 : 7,450.29 = 1,680.75 : x
  2. Step 2: Convert to fraction form
    4,969.95/7,450.29 = 1,680.75/x
  3. Step 3: Cross multiply
    4,969.95x = 7,450.29 × 1,680.75
  4. Step 4: Simplify right side
    4,969.95x = 12,522,077.93
  5. Step 5: Solve for x
    x = 12,522,077.93/4,969.95
  6. Step 6: Final answer
    x = 2,519.56

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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.