Home / 1,318.14-1,973.57-1,216.08

Finding the Fourth Proportional to 1,318.14, 1,973.57 and 1,216.08

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Solution

The fourth proportional to 1,318.14, 1,973.57 and 1,216.08 is: 1,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.14 : 1,973.57 = 1,216.08 : x
  2. Step 2: Convert to fraction form
    1,318.14/1,973.57 = 1,216.08/x
  3. Step 3: Cross multiply
    1,318.14x = 1,973.57 × 1,216.08
  4. Step 4: Simplify right side
    1,318.14x = 2,400,012.93
  5. Step 5: Solve for x
    x = 2,400,012.93/1,318.14
  6. Step 6: Final answer
    x = 1,820.76

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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.