Home / 1,055.35-1,583.27-324.91

Finding the Fourth Proportional to 1,055.35, 1,583.27 and 324.91

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Solution

The fourth proportional to 1,055.35, 1,583.27 and 324.91 is: 487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055.35 : 1,583.27 = 324.91 : x
  2. Step 2: Convert to fraction form
    1,055.35/1,583.27 = 324.91/x
  3. Step 3: Cross multiply
    1,055.35x = 1,583.27 × 324.91
  4. Step 4: Simplify right side
    1,055.35x = 514,410.71
  5. Step 5: Solve for x
    x = 514,410.71/1,055.35
  6. Step 6: Final answer
    x = 487.43

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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.