Home / 2,784.10-3,841.68-1,790.71

Finding the Fourth Proportional to 2,784.10, 3,841.68 and 1,790.71

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Solution

The fourth proportional to 2,784.10, 3,841.68 and 1,790.71 is: 2,470.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.10 : 3,841.68 = 1,790.71 : x
  2. Step 2: Convert to fraction form
    2,784.10/3,841.68 = 1,790.71/x
  3. Step 3: Cross multiply
    2,784.10x = 3,841.68 × 1,790.71
  4. Step 4: Simplify right side
    2,784.10x = 6,879,334.79
  5. Step 5: Solve for x
    x = 6,879,334.79/2,784.10
  6. Step 6: Final answer
    x = 2,470.94

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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.