Home / 1,071.20-1,605.44-584.66

Finding the Fourth Proportional to 1,071.20, 1,605.44 and 584.66

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Solution

The fourth proportional to 1,071.20, 1,605.44 and 584.66 is: 876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071.20 : 1,605.44 = 584.66 : x
  2. Step 2: Convert to fraction form
    1,071.20/1,605.44 = 584.66/x
  3. Step 3: Cross multiply
    1,071.20x = 1,605.44 × 584.66
  4. Step 4: Simplify right side
    1,071.20x = 938,636.55
  5. Step 5: Solve for x
    x = 938,636.55/1,071.20
  6. Step 6: Final answer
    x = 876.25

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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.