Home / 3,534.67-4,876.45-2,118.39

Finding the Fourth Proportional to 3,534.67, 4,876.45 and 2,118.39

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Solution

The fourth proportional to 3,534.67, 4,876.45 and 2,118.39 is: 2,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,534.67 : 4,876.45 = 2,118.39 : x
  2. Step 2: Convert to fraction form
    3,534.67/4,876.45 = 2,118.39/x
  3. Step 3: Cross multiply
    3,534.67x = 4,876.45 × 2,118.39
  4. Step 4: Simplify right side
    3,534.67x = 10,330,211.25
  5. Step 5: Solve for x
    x = 10,330,211.25/3,534.67
  6. Step 6: Final answer
    x = 2,922.54

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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.