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Finding the Fourth Proportional to 3,050.42, 4,575.06 and 858.69

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Solution

The fourth proportional to 3,050.42, 4,575.06 and 858.69 is: 1,287.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,050.42 : 4,575.06 = 858.69 : x
  2. Step 2: Convert to fraction form
    3,050.42/4,575.06 = 858.69/x
  3. Step 3: Cross multiply
    3,050.42x = 4,575.06 × 858.69
  4. Step 4: Simplify right side
    3,050.42x = 3,928,558.27
  5. Step 5: Solve for x
    x = 3,928,558.27/3,050.42
  6. Step 6: Final answer
    x = 1,287.88

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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.