Home / 7,072.08-9,758.39-4,087.34

Finding the Fourth Proportional to 7,072.08, 9,758.39 and 4,087.34

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Solution

The fourth proportional to 7,072.08, 9,758.39 and 4,087.34 is: 5,639.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.08 : 9,758.39 = 4,087.34 : x
  2. Step 2: Convert to fraction form
    7,072.08/9,758.39 = 4,087.34/x
  3. Step 3: Cross multiply
    7,072.08x = 9,758.39 × 4,087.34
  4. Step 4: Simplify right side
    7,072.08x = 39,885,788.55
  5. Step 5: Solve for x
    x = 39,885,788.55/7,072.08
  6. Step 6: Final answer
    x = 5,639.89

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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.