Home / 2,811.10-4,210.56-2,503.30

Finding the Fourth Proportional to 2,811.10, 4,210.56 and 2,503.30

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Solution

The fourth proportional to 2,811.10, 4,210.56 and 2,503.30 is: 3,749.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.10 : 4,210.56 = 2,503.30 : x
  2. Step 2: Convert to fraction form
    2,811.10/4,210.56 = 2,503.30/x
  3. Step 3: Cross multiply
    2,811.10x = 4,210.56 × 2,503.30
  4. Step 4: Simplify right side
    2,811.10x = 10,540,294.85
  5. Step 5: Solve for x
    x = 10,540,294.85/2,811.10
  6. Step 6: Final answer
    x = 3,749.53

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1.5x scale

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.