Home / 2,811.59-4,217.48-1,056.43

Finding the Fourth Proportional to 2,811.59, 4,217.48 and 1,056.43

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Solution

The fourth proportional to 2,811.59, 4,217.48 and 1,056.43 is: 1,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.59 : 4,217.48 = 1,056.43 : x
  2. Step 2: Convert to fraction form
    2,811.59/4,217.48 = 1,056.43/x
  3. Step 3: Cross multiply
    2,811.59x = 4,217.48 × 1,056.43
  4. Step 4: Simplify right side
    2,811.59x = 4,455,472.40
  5. Step 5: Solve for x
    x = 4,455,472.40/2,811.59
  6. Step 6: Final answer
    x = 1,584.68

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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.