Home / 1,784.48-2,457.47-1,286.33

Finding the Fourth Proportional to 1,784.48, 2,457.47 and 1,286.33

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Solution

The fourth proportional to 1,784.48, 2,457.47 and 1,286.33 is: 1,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.48 : 2,457.47 = 1,286.33 : x
  2. Step 2: Convert to fraction form
    1,784.48/2,457.47 = 1,286.33/x
  3. Step 3: Cross multiply
    1,784.48x = 2,457.47 × 1,286.33
  4. Step 4: Simplify right side
    1,784.48x = 3,161,108.31
  5. Step 5: Solve for x
    x = 3,161,108.31/1,784.48
  6. Step 6: Final answer
    x = 1,771.45

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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.