Home / 1,861.36-2,566.10-1,803.86

Finding the Fourth Proportional to 1,861.36, 2,566.10 and 1,803.86

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Solution

The fourth proportional to 1,861.36, 2,566.10 and 1,803.86 is: 2,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.36 : 2,566.10 = 1,803.86 : x
  2. Step 2: Convert to fraction form
    1,861.36/2,566.10 = 1,803.86/x
  3. Step 3: Cross multiply
    1,861.36x = 2,566.10 × 1,803.86
  4. Step 4: Simplify right side
    1,861.36x = 4,628,885.15
  5. Step 5: Solve for x
    x = 4,628,885.15/1,861.36
  6. Step 6: Final answer
    x = 2,486.83

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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.