Home / 3,050.22-4,575.45-858.90

Finding the Fourth Proportional to 3,050.22, 4,575.45 and 858.90

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Solution

The fourth proportional to 3,050.22, 4,575.45 and 858.90 is: 1,288.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,050.22 : 4,575.45 = 858.90 : x
  2. Step 2: Convert to fraction form
    3,050.22/4,575.45 = 858.90/x
  3. Step 3: Cross multiply
    3,050.22x = 4,575.45 × 858.90
  4. Step 4: Simplify right side
    3,050.22x = 3,929,854.01
  5. Step 5: Solve for x
    x = 3,929,854.01/3,050.22
  6. Step 6: Final answer
    x = 1,288.38

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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.