Home / 1,279.08-1,918.62-586.84

Finding the Fourth Proportional to 1,279.08, 1,918.62 and 586.84

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Solution

The fourth proportional to 1,279.08, 1,918.62 and 586.84 is: 880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279.08 : 1,918.62 = 586.84 : x
  2. Step 2: Convert to fraction form
    1,279.08/1,918.62 = 586.84/x
  3. Step 3: Cross multiply
    1,279.08x = 1,918.62 × 586.84
  4. Step 4: Simplify right side
    1,279.08x = 1,125,922.96
  5. Step 5: Solve for x
    x = 1,125,922.96/1,279.08
  6. Step 6: Final answer
    x = 880.26

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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.