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Finding the Fourth Proportional to 5,295.72, 7,943.80 and 1,400.16

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Solution

The fourth proportional to 5,295.72, 7,943.80 and 1,400.16 is: 2,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,295.72 : 7,943.80 = 1,400.16 : x
  2. Step 2: Convert to fraction form
    5,295.72/7,943.80 = 1,400.16/x
  3. Step 3: Cross multiply
    5,295.72x = 7,943.80 × 1,400.16
  4. Step 4: Simplify right side
    5,295.72x = 11,122,591.01
  5. Step 5: Solve for x
    x = 11,122,591.01/5,295.72
  6. Step 6: Final answer
    x = 2,100.30

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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.