Home / 5,191.12-7,776.60-4,609.36

Finding the Fourth Proportional to 5,191.12, 7,776.60 and 4,609.36

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Solution

The fourth proportional to 5,191.12, 7,776.60 and 4,609.36 is: 6,905.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.12 : 7,776.60 = 4,609.36 : x
  2. Step 2: Convert to fraction form
    5,191.12/7,776.60 = 4,609.36/x
  3. Step 3: Cross multiply
    5,191.12x = 7,776.60 × 4,609.36
  4. Step 4: Simplify right side
    5,191.12x = 35,845,148.98
  5. Step 5: Solve for x
    x = 35,845,148.98/5,191.12
  6. Step 6: Final answer
    x = 6,905.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.