Home / 5,191.48-7,784.34-1,726.84

Finding the Fourth Proportional to 5,191.48, 7,784.34 and 1,726.84

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Solution

The fourth proportional to 5,191.48, 7,784.34 and 1,726.84 is: 2,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.48 : 7,784.34 = 1,726.84 : x
  2. Step 2: Convert to fraction form
    5,191.48/7,784.34 = 1,726.84/x
  3. Step 3: Cross multiply
    5,191.48x = 7,784.34 × 1,726.84
  4. Step 4: Simplify right side
    5,191.48x = 13,442,309.69
  5. Step 5: Solve for x
    x = 13,442,309.69/5,191.48
  6. Step 6: Final answer
    x = 2,589.30

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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.