Home / 1,861.86-2,566.80-1,804.35

Finding the Fourth Proportional to 1,861.86, 2,566.80 and 1,804.35

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Solution

The fourth proportional to 1,861.86, 2,566.80 and 1,804.35 is: 2,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.86 : 2,566.80 = 1,804.35 : x
  2. Step 2: Convert to fraction form
    1,861.86/2,566.80 = 1,804.35/x
  3. Step 3: Cross multiply
    1,861.86x = 2,566.80 × 1,804.35
  4. Step 4: Simplify right side
    1,861.86x = 4,631,405.58
  5. Step 5: Solve for x
    x = 4,631,405.58/1,861.86
  6. Step 6: Final answer
    x = 2,487.52

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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.