Home / 5,528.45-7,628.90-3,290.49

Finding the Fourth Proportional to 5,528.45, 7,628.90 and 3,290.49

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Solution

The fourth proportional to 5,528.45, 7,628.90 and 3,290.49 is: 4,540.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.45 : 7,628.90 = 3,290.49 : x
  2. Step 2: Convert to fraction form
    5,528.45/7,628.90 = 3,290.49/x
  3. Step 3: Cross multiply
    5,528.45x = 7,628.90 × 3,290.49
  4. Step 4: Simplify right side
    5,528.45x = 25,102,802.71
  5. Step 5: Solve for x
    x = 25,102,802.71/5,528.45
  6. Step 6: Final answer
    x = 4,540.66

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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.