Home / 3,101.22-4,279.59-1,684.82

Finding the Fourth Proportional to 3,101.22, 4,279.59 and 1,684.82

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Solution

The fourth proportional to 3,101.22, 4,279.59 and 1,684.82 is: 2,325.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.22 : 4,279.59 = 1,684.82 : x
  2. Step 2: Convert to fraction form
    3,101.22/4,279.59 = 1,684.82/x
  3. Step 3: Cross multiply
    3,101.22x = 4,279.59 × 1,684.82
  4. Step 4: Simplify right side
    3,101.22x = 7,210,349.52
  5. Step 5: Solve for x
    x = 7,210,349.52/3,101.22
  6. Step 6: Final answer
    x = 2,325.00

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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.