Home / 7,072.15-9,758.48-4,087.41

Finding the Fourth Proportional to 7,072.15, 9,758.48 and 4,087.41

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Solution

The fourth proportional to 7,072.15, 9,758.48 and 4,087.41 is: 5,639.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.15 : 9,758.48 = 4,087.41 : x
  2. Step 2: Convert to fraction form
    7,072.15/9,758.48 = 4,087.41/x
  3. Step 3: Cross multiply
    7,072.15x = 9,758.48 × 4,087.41
  4. Step 4: Simplify right side
    7,072.15x = 39,886,859.94
  5. Step 5: Solve for x
    x = 39,886,859.94/7,072.15
  6. Step 6: Final answer
    x = 5,639.99

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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.