Home / 3,135.12-4,326.76-1,809.04

Finding the Fourth Proportional to 3,135.12, 4,326.76 and 1,809.04

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Solution

The fourth proportional to 3,135.12, 4,326.76 and 1,809.04 is: 2,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.12 : 4,326.76 = 1,809.04 : x
  2. Step 2: Convert to fraction form
    3,135.12/4,326.76 = 1,809.04/x
  3. Step 3: Cross multiply
    3,135.12x = 4,326.76 × 1,809.04
  4. Step 4: Simplify right side
    3,135.12x = 7,827,281.91
  5. Step 5: Solve for x
    x = 7,827,281.91/3,135.12
  6. Step 6: Final answer
    x = 2,496.65

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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.