Home / 1,637.32-2,457.44-868.36

Finding the Fourth Proportional to 1,637.32, 2,457.44 and 868.36

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Solution

The fourth proportional to 1,637.32, 2,457.44 and 868.36 is: 1,303.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.32 : 2,457.44 = 868.36 : x
  2. Step 2: Convert to fraction form
    1,637.32/2,457.44 = 868.36/x
  3. Step 3: Cross multiply
    1,637.32x = 2,457.44 × 868.36
  4. Step 4: Simplify right side
    1,637.32x = 2,133,942.60
  5. Step 5: Solve for x
    x = 2,133,942.60/1,637.32
  6. Step 6: Final answer
    x = 1,303.31

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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.