Home / 5,290.49-7,939.38-1,827.74

Finding the Fourth Proportional to 5,290.49, 7,939.38 and 1,827.74

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Solution

The fourth proportional to 5,290.49, 7,939.38 and 1,827.74 is: 2,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.49 : 7,939.38 = 1,827.74 : x
  2. Step 2: Convert to fraction form
    5,290.49/7,939.38 = 1,827.74/x
  3. Step 3: Cross multiply
    5,290.49x = 7,939.38 × 1,827.74
  4. Step 4: Simplify right side
    5,290.49x = 14,511,149.10
  5. Step 5: Solve for x
    x = 14,511,149.10/5,290.49
  6. Step 6: Final answer
    x = 2,742.87

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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.