Home / 3,462.58-4,778.40-1,890.70

Finding the Fourth Proportional to 3,462.58, 4,778.40 and 1,890.70

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Solution

The fourth proportional to 3,462.58, 4,778.40 and 1,890.70 is: 2,609.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,462.58 : 4,778.40 = 1,890.70 : x
  2. Step 2: Convert to fraction form
    3,462.58/4,778.40 = 1,890.70/x
  3. Step 3: Cross multiply
    3,462.58x = 4,778.40 × 1,890.70
  4. Step 4: Simplify right side
    3,462.58x = 9,034,520.88
  5. Step 5: Solve for x
    x = 9,034,520.88/3,462.58
  6. Step 6: Final answer
    x = 2,609.19

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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.