Home / 1,960.16-2,705.08-1,174.64

Finding the Fourth Proportional to 1,960.16, 2,705.08 and 1,174.64

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Solution

The fourth proportional to 1,960.16, 2,705.08 and 1,174.64 is: 1,621.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.16 : 2,705.08 = 1,174.64 : x
  2. Step 2: Convert to fraction form
    1,960.16/2,705.08 = 1,174.64/x
  3. Step 3: Cross multiply
    1,960.16x = 2,705.08 × 1,174.64
  4. Step 4: Simplify right side
    1,960.16x = 3,177,495.17
  5. Step 5: Solve for x
    x = 3,177,495.17/1,960.16
  6. Step 6: Final answer
    x = 1,621.04

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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.