Home / 2,457.85-3,392.15-1,409.89

Finding the Fourth Proportional to 2,457.85, 3,392.15 and 1,409.89

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Solution

The fourth proportional to 2,457.85, 3,392.15 and 1,409.89 is: 1,945.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.85 : 3,392.15 = 1,409.89 : x
  2. Step 2: Convert to fraction form
    2,457.85/3,392.15 = 1,409.89/x
  3. Step 3: Cross multiply
    2,457.85x = 3,392.15 × 1,409.89
  4. Step 4: Simplify right side
    2,457.85x = 4,782,558.36
  5. Step 5: Solve for x
    x = 4,782,558.36/2,457.85
  6. Step 6: Final answer
    x = 1,945.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.