Home / 7,890.84-11,837.52-2,695.50

Finding the Fourth Proportional to 7,890.84, 11,837.52 and 2,695.50

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Solution

The fourth proportional to 7,890.84, 11,837.52 and 2,695.50 is: 4,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.84 : 11,837.52 = 2,695.50 : x
  2. Step 2: Convert to fraction form
    7,890.84/11,837.52 = 2,695.50/x
  3. Step 3: Cross multiply
    7,890.84x = 11,837.52 × 2,695.50
  4. Step 4: Simplify right side
    7,890.84x = 31,908,035.16
  5. Step 5: Solve for x
    x = 31,908,035.16/7,890.84
  6. Step 6: Final answer
    x = 4,043.68

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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.