Home / 5,528.43-7,630.02-3,138.99

Finding the Fourth Proportional to 5,528.43, 7,630.02 and 3,138.99

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Solution

The fourth proportional to 5,528.43, 7,630.02 and 3,138.99 is: 4,332.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.43 : 7,630.02 = 3,138.99 : x
  2. Step 2: Convert to fraction form
    5,528.43/7,630.02 = 3,138.99/x
  3. Step 3: Cross multiply
    5,528.43x = 7,630.02 × 3,138.99
  4. Step 4: Simplify right side
    5,528.43x = 23,950,556.48
  5. Step 5: Solve for x
    x = 23,950,556.48/5,528.43
  6. Step 6: Final answer
    x = 4,332.25

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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.