Home / 1,314.24-1,962.84-1,040.64

Finding the Fourth Proportional to 1,314.24, 1,962.84 and 1,040.64

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Solution

The fourth proportional to 1,314.24, 1,962.84 and 1,040.64 is: 1,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314.24 : 1,962.84 = 1,040.64 : x
  2. Step 2: Convert to fraction form
    1,314.24/1,962.84 = 1,040.64/x
  3. Step 3: Cross multiply
    1,314.24x = 1,962.84 × 1,040.64
  4. Step 4: Simplify right side
    1,314.24x = 2,042,609.82
  5. Step 5: Solve for x
    x = 2,042,609.82/1,314.24
  6. Step 6: Final answer
    x = 1,554.21

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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.