Home / 5,471.42-8,206.35-3,123.80

Finding the Fourth Proportional to 5,471.42, 8,206.35 and 3,123.80

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Solution

The fourth proportional to 5,471.42, 8,206.35 and 3,123.80 is: 4,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.42 : 8,206.35 = 3,123.80 : x
  2. Step 2: Convert to fraction form
    5,471.42/8,206.35 = 3,123.80/x
  3. Step 3: Cross multiply
    5,471.42x = 8,206.35 × 3,123.80
  4. Step 4: Simplify right side
    5,471.42x = 25,634,974.16
  5. Step 5: Solve for x
    x = 25,634,974.16/5,471.42
  6. Step 6: Final answer
    x = 4,685.25

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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.