Home / 3,081.30-4,253.10-1,755.74

Finding the Fourth Proportional to 3,081.30, 4,253.10 and 1,755.74

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Solution

The fourth proportional to 3,081.30, 4,253.10 and 1,755.74 is: 2,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.30 : 4,253.10 = 1,755.74 : x
  2. Step 2: Convert to fraction form
    3,081.30/4,253.10 = 1,755.74/x
  3. Step 3: Cross multiply
    3,081.30x = 4,253.10 × 1,755.74
  4. Step 4: Simplify right side
    3,081.30x = 7,467,337.79
  5. Step 5: Solve for x
    x = 7,467,337.79/3,081.30
  6. Step 6: Final answer
    x = 2,423.44

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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.