Home / 1,318.83-1,977.58-441.02

Finding the Fourth Proportional to 1,318.83, 1,977.58 and 441.02

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Solution

The fourth proportional to 1,318.83, 1,977.58 and 441.02 is: 661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.83 : 1,977.58 = 441.02 : x
  2. Step 2: Convert to fraction form
    1,318.83/1,977.58 = 441.02/x
  3. Step 3: Cross multiply
    1,318.83x = 1,977.58 × 441.02
  4. Step 4: Simplify right side
    1,318.83x = 872,157.83
  5. Step 5: Solve for x
    x = 872,157.83/1,318.83
  6. Step 6: Final answer
    x = 661.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.