Home / 1,033.80-1,551.30-384.60

Finding the Fourth Proportional to 1,033.80, 1,551.30 and 384.60

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Solution

The fourth proportional to 1,033.80, 1,551.30 and 384.60 is: 577.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.80 : 1,551.30 = 384.60 : x
  2. Step 2: Convert to fraction form
    1,033.80/1,551.30 = 384.60/x
  3. Step 3: Cross multiply
    1,033.80x = 1,551.30 × 384.60
  4. Step 4: Simplify right side
    1,033.80x = 596,629.98
  5. Step 5: Solve for x
    x = 596,629.98/1,033.80
  6. Step 6: Final answer
    x = 577.12

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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.