Home / 7,040.80-9,718.51-5,450.67

Finding the Fourth Proportional to 7,040.80, 9,718.51 and 5,450.67

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Solution

The fourth proportional to 7,040.80, 9,718.51 and 5,450.67 is: 7,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.80 : 9,718.51 = 5,450.67 : x
  2. Step 2: Convert to fraction form
    7,040.80/9,718.51 = 5,450.67/x
  3. Step 3: Cross multiply
    7,040.80x = 9,718.51 × 5,450.67
  4. Step 4: Simplify right side
    7,040.80x = 52,972,390.90
  5. Step 5: Solve for x
    x = 52,972,390.90/7,040.80
  6. Step 6: Final answer
    x = 7,523.63

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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.