Home / 1,670.49-2,305.94-1,148.31

Finding the Fourth Proportional to 1,670.49, 2,305.94 and 1,148.31

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Solution

The fourth proportional to 1,670.49, 2,305.94 and 1,148.31 is: 1,585.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.49 : 2,305.94 = 1,148.31 : x
  2. Step 2: Convert to fraction form
    1,670.49/2,305.94 = 1,148.31/x
  3. Step 3: Cross multiply
    1,670.49x = 2,305.94 × 1,148.31
  4. Step 4: Simplify right side
    1,670.49x = 2,647,928.22
  5. Step 5: Solve for x
    x = 2,647,928.22/1,670.49
  6. Step 6: Final answer
    x = 1,585.12

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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.