Home / 5,581.89-7,701.75-3,789.63

Finding the Fourth Proportional to 5,581.89, 7,701.75 and 3,789.63

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Solution

The fourth proportional to 5,581.89, 7,701.75 and 3,789.63 is: 5,228.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.89 : 7,701.75 = 3,789.63 : x
  2. Step 2: Convert to fraction form
    5,581.89/7,701.75 = 3,789.63/x
  3. Step 3: Cross multiply
    5,581.89x = 7,701.75 × 3,789.63
  4. Step 4: Simplify right side
    5,581.89x = 29,186,782.85
  5. Step 5: Solve for x
    x = 29,186,782.85/5,581.89
  6. Step 6: Final answer
    x = 5,228.84

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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.