Home / 3,191.49-4,403.60-1,864.94

Finding the Fourth Proportional to 3,191.49, 4,403.60 and 1,864.94

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Solution

The fourth proportional to 3,191.49, 4,403.60 and 1,864.94 is: 2,573.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.49 : 4,403.60 = 1,864.94 : x
  2. Step 2: Convert to fraction form
    3,191.49/4,403.60 = 1,864.94/x
  3. Step 3: Cross multiply
    3,191.49x = 4,403.60 × 1,864.94
  4. Step 4: Simplify right side
    3,191.49x = 8,212,427.77
  5. Step 5: Solve for x
    x = 8,212,427.77/3,191.49
  6. Step 6: Final answer
    x = 2,573.23

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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.