Home / 1,730.87-2,388.58-984.81

Finding the Fourth Proportional to 1,730.87, 2,388.58 and 984.81

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Solution

The fourth proportional to 1,730.87, 2,388.58 and 984.81 is: 1,359.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.87 : 2,388.58 = 984.81 : x
  2. Step 2: Convert to fraction form
    1,730.87/2,388.58 = 984.81/x
  3. Step 3: Cross multiply
    1,730.87x = 2,388.58 × 984.81
  4. Step 4: Simplify right side
    1,730.87x = 2,352,297.47
  5. Step 5: Solve for x
    x = 2,352,297.47/1,730.87
  6. Step 6: Final answer
    x = 1,359.03

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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.