Home / 2,770.93-4,156.35-1,311.13

Finding the Fourth Proportional to 2,770.93, 4,156.35 and 1,311.13

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Solution

The fourth proportional to 2,770.93, 4,156.35 and 1,311.13 is: 1,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.93 : 4,156.35 = 1,311.13 : x
  2. Step 2: Convert to fraction form
    2,770.93/4,156.35 = 1,311.13/x
  3. Step 3: Cross multiply
    2,770.93x = 4,156.35 × 1,311.13
  4. Step 4: Simplify right side
    2,770.93x = 5,449,515.18
  5. Step 5: Solve for x
    x = 5,449,515.18/2,770.93
  6. Step 6: Final answer
    x = 1,966.67

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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.