Home / 5,811.13-8,715.48-1,914.63

Finding the Fourth Proportional to 5,811.13, 8,715.48 and 1,914.63

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Solution

The fourth proportional to 5,811.13, 8,715.48 and 1,914.63 is: 2,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.13 : 8,715.48 = 1,914.63 : x
  2. Step 2: Convert to fraction form
    5,811.13/8,715.48 = 1,914.63/x
  3. Step 3: Cross multiply
    5,811.13x = 8,715.48 × 1,914.63
  4. Step 4: Simplify right side
    5,811.13x = 16,686,919.47
  5. Step 5: Solve for x
    x = 16,686,919.47/5,811.13
  6. Step 6: Final answer
    x = 2,871.54

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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.