Home / 1,584.23-2,376.75-1,278.86

Finding the Fourth Proportional to 1,584.23, 2,376.75 and 1,278.86

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Solution

The fourth proportional to 1,584.23, 2,376.75 and 1,278.86 is: 1,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.23 : 2,376.75 = 1,278.86 : x
  2. Step 2: Convert to fraction form
    1,584.23/2,376.75 = 1,278.86/x
  3. Step 3: Cross multiply
    1,584.23x = 2,376.75 × 1,278.86
  4. Step 4: Simplify right side
    1,584.23x = 3,039,530.51
  5. Step 5: Solve for x
    x = 3,039,530.51/1,584.23
  6. Step 6: Final answer
    x = 1,918.62

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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.