Home / 2,409.35-3,615.15-1,670.09

Finding the Fourth Proportional to 2,409.35, 3,615.15 and 1,670.09

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Solution

The fourth proportional to 2,409.35, 3,615.15 and 1,670.09 is: 2,505.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.35 : 3,615.15 = 1,670.09 : x
  2. Step 2: Convert to fraction form
    2,409.35/3,615.15 = 1,670.09/x
  3. Step 3: Cross multiply
    2,409.35x = 3,615.15 × 1,670.09
  4. Step 4: Simplify right side
    2,409.35x = 6,037,607.79
  5. Step 5: Solve for x
    x = 6,037,607.79/2,409.35
  6. Step 6: Final answer
    x = 2,505.91

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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.