Home / 4,905.78-6,770.52-3,311.70

Finding the Fourth Proportional to 4,905.78, 6,770.52 and 3,311.70

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Solution

The fourth proportional to 4,905.78, 6,770.52 and 3,311.70 is: 4,570.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.78 : 6,770.52 = 3,311.70 : x
  2. Step 2: Convert to fraction form
    4,905.78/6,770.52 = 3,311.70/x
  3. Step 3: Cross multiply
    4,905.78x = 6,770.52 × 3,311.70
  4. Step 4: Simplify right side
    4,905.78x = 22,421,931.08
  5. Step 5: Solve for x
    x = 22,421,931.08/4,905.78
  6. Step 6: Final answer
    x = 4,570.51

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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.