Home / 4,154.40-6,226.80-1,687.60

Finding the Fourth Proportional to 4,154.40, 6,226.80 and 1,687.60

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Solution

The fourth proportional to 4,154.40, 6,226.80 and 1,687.60 is: 2,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,154.40 : 6,226.80 = 1,687.60 : x
  2. Step 2: Convert to fraction form
    4,154.40/6,226.80 = 1,687.60/x
  3. Step 3: Cross multiply
    4,154.40x = 6,226.80 × 1,687.60
  4. Step 4: Simplify right side
    4,154.40x = 10,508,347.68
  5. Step 5: Solve for x
    x = 10,508,347.68/4,154.40
  6. Step 6: Final answer
    x = 2,529.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.