Home / 1,643.23-2,463.22-670.02

Finding the Fourth Proportional to 1,643.23, 2,463.22 and 670.02

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Solution

The fourth proportional to 1,643.23, 2,463.22 and 670.02 is: 1,004.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.23 : 2,463.22 = 670.02 : x
  2. Step 2: Convert to fraction form
    1,643.23/2,463.22 = 670.02/x
  3. Step 3: Cross multiply
    1,643.23x = 2,463.22 × 670.02
  4. Step 4: Simplify right side
    1,643.23x = 1,650,406.66
  5. Step 5: Solve for x
    x = 1,650,406.66/1,643.23
  6. Step 6: Final answer
    x = 1,004.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.