Home / 3,154.40-4,723.39-1,686.37

Finding the Fourth Proportional to 3,154.40, 4,723.39 and 1,686.37

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Solution

The fourth proportional to 3,154.40, 4,723.39 and 1,686.37 is: 2,525.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.40 : 4,723.39 = 1,686.37 : x
  2. Step 2: Convert to fraction form
    3,154.40/4,723.39 = 1,686.37/x
  3. Step 3: Cross multiply
    3,154.40x = 4,723.39 × 1,686.37
  4. Step 4: Simplify right side
    3,154.40x = 7,965,374.76
  5. Step 5: Solve for x
    x = 7,965,374.76/3,154.40
  6. Step 6: Final answer
    x = 2,525.17

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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.