Home / 3,462.60-4,778.39-1,890.69

Finding the Fourth Proportional to 3,462.60, 4,778.39 and 1,890.69

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Solution

The fourth proportional to 3,462.60, 4,778.39 and 1,890.69 is: 2,609.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,462.60 : 4,778.39 = 1,890.69 : x
  2. Step 2: Convert to fraction form
    3,462.60/4,778.39 = 1,890.69/x
  3. Step 3: Cross multiply
    3,462.60x = 4,778.39 × 1,890.69
  4. Step 4: Simplify right side
    3,462.60x = 9,034,444.74
  5. Step 5: Solve for x
    x = 9,034,444.74/3,462.60
  6. Step 6: Final answer
    x = 2,609.15

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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.