Home / 7,890.82-10,885.26-4,905.52

Finding the Fourth Proportional to 7,890.82, 10,885.26 and 4,905.52

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Solution

The fourth proportional to 7,890.82, 10,885.26 and 4,905.52 is: 6,767.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.82 : 10,885.26 = 4,905.52 : x
  2. Step 2: Convert to fraction form
    7,890.82/10,885.26 = 4,905.52/x
  3. Step 3: Cross multiply
    7,890.82x = 10,885.26 × 4,905.52
  4. Step 4: Simplify right side
    7,890.82x = 53,397,860.64
  5. Step 5: Solve for x
    x = 53,397,860.64/7,890.82
  6. Step 6: Final answer
    x = 6,767.09

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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.