Home / 5,603.11-8,405.78-1,904.34

Finding the Fourth Proportional to 5,603.11, 8,405.78 and 1,904.34

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Solution

The fourth proportional to 5,603.11, 8,405.78 and 1,904.34 is: 2,856.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,603.11 : 8,405.78 = 1,904.34 : x
  2. Step 2: Convert to fraction form
    5,603.11/8,405.78 = 1,904.34/x
  3. Step 3: Cross multiply
    5,603.11x = 8,405.78 × 1,904.34
  4. Step 4: Simplify right side
    5,603.11x = 16,007,485.09
  5. Step 5: Solve for x
    x = 16,007,485.09/5,603.11
  6. Step 6: Final answer
    x = 2,856.89

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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.