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Finding the Fourth Proportional to 7,808.70, 10,775.87 and 4,783.35

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Solution

The fourth proportional to 7,808.70, 10,775.87 and 4,783.35 is: 6,600.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808.70 : 10,775.87 = 4,783.35 : x
  2. Step 2: Convert to fraction form
    7,808.70/10,775.87 = 4,783.35/x
  3. Step 3: Cross multiply
    7,808.70x = 10,775.87 × 4,783.35
  4. Step 4: Simplify right side
    7,808.70x = 51,544,769.72
  5. Step 5: Solve for x
    x = 51,544,769.72/7,808.70
  6. Step 6: Final answer
    x = 6,600.94

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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.