Home / 1,259.30-1,886.70-608.60

Finding the Fourth Proportional to 1,259.30, 1,886.70 and 608.60

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Solution

The fourth proportional to 1,259.30, 1,886.70 and 608.60 is: 911.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.30 : 1,886.70 = 608.60 : x
  2. Step 2: Convert to fraction form
    1,259.30/1,886.70 = 608.60/x
  3. Step 3: Cross multiply
    1,259.30x = 1,886.70 × 608.60
  4. Step 4: Simplify right side
    1,259.30x = 1,148,245.62
  5. Step 5: Solve for x
    x = 1,148,245.62/1,259.30
  6. Step 6: Final answer
    x = 911.81

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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.