Home / 3,154.12-4,352.44-1,809.88

Finding the Fourth Proportional to 3,154.12, 4,352.44 and 1,809.88

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Solution

The fourth proportional to 3,154.12, 4,352.44 and 1,809.88 is: 2,497.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.12 : 4,352.44 = 1,809.88 : x
  2. Step 2: Convert to fraction form
    3,154.12/4,352.44 = 1,809.88/x
  3. Step 3: Cross multiply
    3,154.12x = 4,352.44 × 1,809.88
  4. Step 4: Simplify right side
    3,154.12x = 7,877,394.11
  5. Step 5: Solve for x
    x = 7,877,394.11/3,154.12
  6. Step 6: Final answer
    x = 2,497.49

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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.