Home / 2,405.14-3,607.78-1,429.08

Finding the Fourth Proportional to 2,405.14, 3,607.78 and 1,429.08

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Solution

The fourth proportional to 2,405.14, 3,607.78 and 1,429.08 is: 2,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.14 : 3,607.78 = 1,429.08 : x
  2. Step 2: Convert to fraction form
    2,405.14/3,607.78 = 1,429.08/x
  3. Step 3: Cross multiply
    2,405.14x = 3,607.78 × 1,429.08
  4. Step 4: Simplify right side
    2,405.14x = 5,155,806.24
  5. Step 5: Solve for x
    x = 5,155,806.24/2,405.14
  6. Step 6: Final answer
    x = 2,143.66

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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.