Home / 2,128.16-2,936.91-1,184.01

Finding the Fourth Proportional to 2,128.16, 2,936.91 and 1,184.01

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Solution

The fourth proportional to 2,128.16, 2,936.91 and 1,184.01 is: 1,633.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.16 : 2,936.91 = 1,184.01 : x
  2. Step 2: Convert to fraction form
    2,128.16/2,936.91 = 1,184.01/x
  3. Step 3: Cross multiply
    2,128.16x = 2,936.91 × 1,184.01
  4. Step 4: Simplify right side
    2,128.16x = 3,477,330.81
  5. Step 5: Solve for x
    x = 3,477,330.81/2,128.16
  6. Step 6: Final answer
    x = 1,633.97

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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.