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Finding the Fourth Proportional to 7,056, 10,619.44 and 5,310.05

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Solution

The fourth proportional to 7,056, 10,619.44 and 5,310.05 is: 7,991.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,056 : 10,619.44 = 5,310.05 : x
  2. Step 2: Convert to fraction form
    7,056/10,619.44 = 5,310.05/x
  3. Step 3: Cross multiply
    7,056x = 10,619.44 × 5,310.05
  4. Step 4: Simplify right side
    7,056x = 56,389,710.91
  5. Step 5: Solve for x
    x = 56,389,710.91/7,056
  6. Step 6: Final answer
    x = 7,991.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.