Home / 1,628.16-2,438.40-1,551.36

Finding the Fourth Proportional to 1,628.16, 2,438.40 and 1,551.36

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Solution

The fourth proportional to 1,628.16, 2,438.40 and 1,551.36 is: 2,323.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.16 : 2,438.40 = 1,551.36 : x
  2. Step 2: Convert to fraction form
    1,628.16/2,438.40 = 1,551.36/x
  3. Step 3: Cross multiply
    1,628.16x = 2,438.40 × 1,551.36
  4. Step 4: Simplify right side
    1,628.16x = 3,782,836.22
  5. Step 5: Solve for x
    x = 3,782,836.22/1,628.16
  6. Step 6: Final answer
    x = 2,323.38

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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.