Home / 1,071.40-1,605.26-584.79

Finding the Fourth Proportional to 1,071.40, 1,605.26 and 584.79

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Solution

The fourth proportional to 1,071.40, 1,605.26 and 584.79 is: 876.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071.40 : 1,605.26 = 584.79 : x
  2. Step 2: Convert to fraction form
    1,071.40/1,605.26 = 584.79/x
  3. Step 3: Cross multiply
    1,071.40x = 1,605.26 × 584.79
  4. Step 4: Simplify right side
    1,071.40x = 938,741.46
  5. Step 5: Solve for x
    x = 938,741.46/1,071.40
  6. Step 6: Final answer
    x = 876.18

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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.