Home / 5,528.19-7,628.30-3,289.76

Finding the Fourth Proportional to 5,528.19, 7,628.30 and 3,289.76

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Solution

The fourth proportional to 5,528.19, 7,628.30 and 3,289.76 is: 4,539.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.19 : 7,628.30 = 3,289.76 : x
  2. Step 2: Convert to fraction form
    5,528.19/7,628.30 = 3,289.76/x
  3. Step 3: Cross multiply
    5,528.19x = 7,628.30 × 3,289.76
  4. Step 4: Simplify right side
    5,528.19x = 25,095,221.62
  5. Step 5: Solve for x
    x = 25,095,221.62/5,528.19
  6. Step 6: Final answer
    x = 4,539.50

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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.