Home / 1,055.80-1,583.60-325.32

Finding the Fourth Proportional to 1,055.80, 1,583.60 and 325.32

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Solution

The fourth proportional to 1,055.80, 1,583.60 and 325.32 is: 487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055.80 : 1,583.60 = 325.32 : x
  2. Step 2: Convert to fraction form
    1,055.80/1,583.60 = 325.32/x
  3. Step 3: Cross multiply
    1,055.80x = 1,583.60 × 325.32
  4. Step 4: Simplify right side
    1,055.80x = 515,176.75
  5. Step 5: Solve for x
    x = 515,176.75/1,055.80
  6. Step 6: Final answer
    x = 487.95

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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.