Home / 1,722.18-2,374.47-1,629.84

Finding the Fourth Proportional to 1,722.18, 2,374.47 and 1,629.84

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Solution

The fourth proportional to 1,722.18, 2,374.47 and 1,629.84 is: 2,247.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.18 : 2,374.47 = 1,629.84 : x
  2. Step 2: Convert to fraction form
    1,722.18/2,374.47 = 1,629.84/x
  3. Step 3: Cross multiply
    1,722.18x = 2,374.47 × 1,629.84
  4. Step 4: Simplify right side
    1,722.18x = 3,870,006.18
  5. Step 5: Solve for x
    x = 3,870,006.18/1,722.18
  6. Step 6: Final answer
    x = 2,247.16

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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.