Home / 1,867.23-2,781.69-1,782.99

Finding the Fourth Proportional to 1,867.23, 2,781.69 and 1,782.99

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Solution

The fourth proportional to 1,867.23, 2,781.69 and 1,782.99 is: 2,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.23 : 2,781.69 = 1,782.99 : x
  2. Step 2: Convert to fraction form
    1,867.23/2,781.69 = 1,782.99/x
  3. Step 3: Cross multiply
    1,867.23x = 2,781.69 × 1,782.99
  4. Step 4: Simplify right side
    1,867.23x = 4,959,725.45
  5. Step 5: Solve for x
    x = 4,959,725.45/1,867.23
  6. Step 6: Final answer
    x = 2,656.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.