Home / 5,189.45-7,784.30-1,726.70

Finding the Fourth Proportional to 5,189.45, 7,784.30 and 1,726.70

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Solution

The fourth proportional to 5,189.45, 7,784.30 and 1,726.70 is: 2,590.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.45 : 7,784.30 = 1,726.70 : x
  2. Step 2: Convert to fraction form
    5,189.45/7,784.30 = 1,726.70/x
  3. Step 3: Cross multiply
    5,189.45x = 7,784.30 × 1,726.70
  4. Step 4: Simplify right side
    5,189.45x = 13,441,103.26
  5. Step 5: Solve for x
    x = 13,441,103.26/5,189.45
  6. Step 6: Final answer
    x = 2,590.08

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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.