Home / 1,728.84-2,384.64-1,168.32

Finding the Fourth Proportional to 1,728.84, 2,384.64 and 1,168.32

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Solution

The fourth proportional to 1,728.84, 2,384.64 and 1,168.32 is: 1,611.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.84 : 2,384.64 = 1,168.32 : x
  2. Step 2: Convert to fraction form
    1,728.84/2,384.64 = 1,168.32/x
  3. Step 3: Cross multiply
    1,728.84x = 2,384.64 × 1,168.32
  4. Step 4: Simplify right side
    1,728.84x = 2,786,022.60
  5. Step 5: Solve for x
    x = 2,786,022.60/1,728.84
  6. Step 6: Final answer
    x = 1,611.50

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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.