Home / 3,454.81-4,770.45-2,816.85

Finding the Fourth Proportional to 3,454.81, 4,770.45 and 2,816.85

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Solution

The fourth proportional to 3,454.81, 4,770.45 and 2,816.85 is: 3,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.81 : 4,770.45 = 2,816.85 : x
  2. Step 2: Convert to fraction form
    3,454.81/4,770.45 = 2,816.85/x
  3. Step 3: Cross multiply
    3,454.81x = 4,770.45 × 2,816.85
  4. Step 4: Simplify right side
    3,454.81x = 13,437,642.08
  5. Step 5: Solve for x
    x = 13,437,642.08/3,454.81
  6. Step 6: Final answer
    x = 3,889.55

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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.