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Finding the Fourth Proportional to 7,295.18, 10,927.11 and 3,129.77

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Solution

The fourth proportional to 7,295.18, 10,927.11 and 3,129.77 is: 4,687.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,295.18 : 10,927.11 = 3,129.77 : x
  2. Step 2: Convert to fraction form
    7,295.18/10,927.11 = 3,129.77/x
  3. Step 3: Cross multiply
    7,295.18x = 10,927.11 × 3,129.77
  4. Step 4: Simplify right side
    7,295.18x = 34,199,341.06
  5. Step 5: Solve for x
    x = 34,199,341.06/7,295.18
  6. Step 6: Final answer
    x = 4,687.94

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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.