Home / 3,280.92-4,913.46-1,890.84

Finding the Fourth Proportional to 3,280.92, 4,913.46 and 1,890.84

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Solution

The fourth proportional to 3,280.92, 4,913.46 and 1,890.84 is: 2,831.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.92 : 4,913.46 = 1,890.84 : x
  2. Step 2: Convert to fraction form
    3,280.92/4,913.46 = 1,890.84/x
  3. Step 3: Cross multiply
    3,280.92x = 4,913.46 × 1,890.84
  4. Step 4: Simplify right side
    3,280.92x = 9,290,566.71
  5. Step 5: Solve for x
    x = 9,290,566.71/3,280.92
  6. Step 6: Final answer
    x = 2,831.70

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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.