Home / 1,055.08-1,583.30-439.22

Finding the Fourth Proportional to 1,055.08, 1,583.30 and 439.22

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Solution

The fourth proportional to 1,055.08, 1,583.30 and 439.22 is: 659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055.08 : 1,583.30 = 439.22 : x
  2. Step 2: Convert to fraction form
    1,055.08/1,583.30 = 439.22/x
  3. Step 3: Cross multiply
    1,055.08x = 1,583.30 × 439.22
  4. Step 4: Simplify right side
    1,055.08x = 695,417.03
  5. Step 5: Solve for x
    x = 695,417.03/1,055.08
  6. Step 6: Final answer
    x = 659.11

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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.