Home / 2,817.17-3,884.05-1,931.39

Finding the Fourth Proportional to 2,817.17, 3,884.05 and 1,931.39

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Solution

The fourth proportional to 2,817.17, 3,884.05 and 1,931.39 is: 2,662.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.17 : 3,884.05 = 1,931.39 : x
  2. Step 2: Convert to fraction form
    2,817.17/3,884.05 = 1,931.39/x
  3. Step 3: Cross multiply
    2,817.17x = 3,884.05 × 1,931.39
  4. Step 4: Simplify right side
    2,817.17x = 7,501,615.33
  5. Step 5: Solve for x
    x = 7,501,615.33/2,817.17
  6. Step 6: Final answer
    x = 2,662.82

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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.