Home / 7,603.76-11,405.40-1,904.72

Finding the Fourth Proportional to 7,603.76, 11,405.40 and 1,904.72

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Solution

The fourth proportional to 7,603.76, 11,405.40 and 1,904.72 is: 2,857.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.76 : 11,405.40 = 1,904.72 : x
  2. Step 2: Convert to fraction form
    7,603.76/11,405.40 = 1,904.72/x
  3. Step 3: Cross multiply
    7,603.76x = 11,405.40 × 1,904.72
  4. Step 4: Simplify right side
    7,603.76x = 21,724,093.49
  5. Step 5: Solve for x
    x = 21,724,093.49/7,603.76
  6. Step 6: Final answer
    x = 2,857.02

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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.