Home / 3,135.96-4,326.64-1,809.49

Finding the Fourth Proportional to 3,135.96, 4,326.64 and 1,809.49

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Solution

The fourth proportional to 3,135.96, 4,326.64 and 1,809.49 is: 2,496.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.96 : 4,326.64 = 1,809.49 : x
  2. Step 2: Convert to fraction form
    3,135.96/4,326.64 = 1,809.49/x
  3. Step 3: Cross multiply
    3,135.96x = 4,326.64 × 1,809.49
  4. Step 4: Simplify right side
    3,135.96x = 7,829,011.81
  5. Step 5: Solve for x
    x = 7,829,011.81/3,135.96
  6. Step 6: Final answer
    x = 2,496.53

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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.