Home / 3,171.40-4,374.50-2,051.88

Finding the Fourth Proportional to 3,171.40, 4,374.50 and 2,051.88

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Solution

The fourth proportional to 3,171.40, 4,374.50 and 2,051.88 is: 2,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.40 : 4,374.50 = 2,051.88 : x
  2. Step 2: Convert to fraction form
    3,171.40/4,374.50 = 2,051.88/x
  3. Step 3: Cross multiply
    3,171.40x = 4,374.50 × 2,051.88
  4. Step 4: Simplify right side
    3,171.40x = 8,975,949.06
  5. Step 5: Solve for x
    x = 8,975,949.06/3,171.40
  6. Step 6: Final answer
    x = 2,830.28

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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.