Home / 1,283.18-1,924.80-1,028.30

Finding the Fourth Proportional to 1,283.18, 1,924.80 and 1,028.30

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Solution

The fourth proportional to 1,283.18, 1,924.80 and 1,028.30 is: 1,542.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.18 : 1,924.80 = 1,028.30 : x
  2. Step 2: Convert to fraction form
    1,283.18/1,924.80 = 1,028.30/x
  3. Step 3: Cross multiply
    1,283.18x = 1,924.80 × 1,028.30
  4. Step 4: Simplify right side
    1,283.18x = 1,979,271.84
  5. Step 5: Solve for x
    x = 1,979,271.84/1,283.18
  6. Step 6: Final answer
    x = 1,542.47

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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.