Home / 2,814.37-3,885.19-1,871.73

Finding the Fourth Proportional to 2,814.37, 3,885.19 and 1,871.73

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Solution

The fourth proportional to 2,814.37, 3,885.19 and 1,871.73 is: 2,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.37 : 3,885.19 = 1,871.73 : x
  2. Step 2: Convert to fraction form
    2,814.37/3,885.19 = 1,871.73/x
  3. Step 3: Cross multiply
    2,814.37x = 3,885.19 × 1,871.73
  4. Step 4: Simplify right side
    2,814.37x = 7,272,038.19
  5. Step 5: Solve for x
    x = 7,272,038.19/2,814.37
  6. Step 6: Final answer
    x = 2,583.90

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1.5x scale

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.