Home / 1,441.70-1,986.54-1,126.47

Finding the Fourth Proportional to 1,441.70, 1,986.54 and 1,126.47

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Solution

The fourth proportional to 1,441.70, 1,986.54 and 1,126.47 is: 1,552.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.70 : 1,986.54 = 1,126.47 : x
  2. Step 2: Convert to fraction form
    1,441.70/1,986.54 = 1,126.47/x
  3. Step 3: Cross multiply
    1,441.70x = 1,986.54 × 1,126.47
  4. Step 4: Simplify right side
    1,441.70x = 2,237,777.71
  5. Step 5: Solve for x
    x = 2,237,777.71/1,441.70
  6. Step 6: Final answer
    x = 1,552.19

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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.