Home / 1,730.37-2,388.40-984.73

Finding the Fourth Proportional to 1,730.37, 2,388.40 and 984.73

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Solution

The fourth proportional to 1,730.37, 2,388.40 and 984.73 is: 1,359.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.37 : 2,388.40 = 984.73 : x
  2. Step 2: Convert to fraction form
    1,730.37/2,388.40 = 984.73/x
  3. Step 3: Cross multiply
    1,730.37x = 2,388.40 × 984.73
  4. Step 4: Simplify right side
    1,730.37x = 2,351,929.13
  5. Step 5: Solve for x
    x = 2,351,929.13/1,730.37
  6. Step 6: Final answer
    x = 1,359.21

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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.