Home / 1,586.48-2,187.96-1,143.68

Finding the Fourth Proportional to 1,586.48, 2,187.96 and 1,143.68

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Solution

The fourth proportional to 1,586.48, 2,187.96 and 1,143.68 is: 1,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.48 : 2,187.96 = 1,143.68 : x
  2. Step 2: Convert to fraction form
    1,586.48/2,187.96 = 1,143.68/x
  3. Step 3: Cross multiply
    1,586.48x = 2,187.96 × 1,143.68
  4. Step 4: Simplify right side
    1,586.48x = 2,502,326.09
  5. Step 5: Solve for x
    x = 2,502,326.09/1,586.48
  6. Step 6: Final answer
    x = 1,577.28

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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.