Home / 3,134.85-4,326.87-1,809.35

Finding the Fourth Proportional to 3,134.85, 4,326.87 and 1,809.35

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Solution

The fourth proportional to 3,134.85, 4,326.87 and 1,809.35 is: 2,497.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.85 : 4,326.87 = 1,809.35 : x
  2. Step 2: Convert to fraction form
    3,134.85/4,326.87 = 1,809.35/x
  3. Step 3: Cross multiply
    3,134.85x = 4,326.87 × 1,809.35
  4. Step 4: Simplify right side
    3,134.85x = 7,828,800.60
  5. Step 5: Solve for x
    x = 7,828,800.60/3,134.85
  6. Step 6: Final answer
    x = 2,497.34

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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.