Home / 3,135.35-4,326.72-1,809.02

Finding the Fourth Proportional to 3,135.35, 4,326.72 and 1,809.02

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Solution

The fourth proportional to 3,135.35, 4,326.72 and 1,809.02 is: 2,496.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.35 : 4,326.72 = 1,809.02 : x
  2. Step 2: Convert to fraction form
    3,135.35/4,326.72 = 1,809.02/x
  3. Step 3: Cross multiply
    3,135.35x = 4,326.72 × 1,809.02
  4. Step 4: Simplify right side
    3,135.35x = 7,827,123.01
  5. Step 5: Solve for x
    x = 7,827,123.01/3,135.35
  6. Step 6: Final answer
    x = 2,496.41

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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.