Home / 3,780.63-5,666.05-2,798.91

Finding the Fourth Proportional to 3,780.63, 5,666.05 and 2,798.91

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Solution

The fourth proportional to 3,780.63, 5,666.05 and 2,798.91 is: 4,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.63 : 5,666.05 = 2,798.91 : x
  2. Step 2: Convert to fraction form
    3,780.63/5,666.05 = 2,798.91/x
  3. Step 3: Cross multiply
    3,780.63x = 5,666.05 × 2,798.91
  4. Step 4: Simplify right side
    3,780.63x = 15,858,764.01
  5. Step 5: Solve for x
    x = 15,858,764.01/3,780.63
  6. Step 6: Final answer
    x = 4,194.74

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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.