Home / 7,875.22-11,813.91-2,943.70

Finding the Fourth Proportional to 7,875.22, 11,813.91 and 2,943.70

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Solution

The fourth proportional to 7,875.22, 11,813.91 and 2,943.70 is: 4,415.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.22 : 11,813.91 = 2,943.70 : x
  2. Step 2: Convert to fraction form
    7,875.22/11,813.91 = 2,943.70/x
  3. Step 3: Cross multiply
    7,875.22x = 11,813.91 × 2,943.70
  4. Step 4: Simplify right side
    7,875.22x = 34,776,606.87
  5. Step 5: Solve for x
    x = 34,776,606.87/7,875.22
  6. Step 6: Final answer
    x = 4,415.95

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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.