Home / 2,814.74-3,885.66-1,635.60

Finding the Fourth Proportional to 2,814.74, 3,885.66 and 1,635.60

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Solution

The fourth proportional to 2,814.74, 3,885.66 and 1,635.60 is: 2,257.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.74 : 3,885.66 = 1,635.60 : x
  2. Step 2: Convert to fraction form
    2,814.74/3,885.66 = 1,635.60/x
  3. Step 3: Cross multiply
    2,814.74x = 3,885.66 × 1,635.60
  4. Step 4: Simplify right side
    2,814.74x = 6,355,385.50
  5. Step 5: Solve for x
    x = 6,355,385.50/2,814.74
  6. Step 6: Final answer
    x = 2,257.89

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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.