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Finding the Fourth Proportional to 5,560.25, 8,340.08 and 1,400.25

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Solution

The fourth proportional to 5,560.25, 8,340.08 and 1,400.25 is: 2,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,560.25 : 8,340.08 = 1,400.25 : x
  2. Step 2: Convert to fraction form
    5,560.25/8,340.08 = 1,400.25/x
  3. Step 3: Cross multiply
    5,560.25x = 8,340.08 × 1,400.25
  4. Step 4: Simplify right side
    5,560.25x = 11,678,190.02
  5. Step 5: Solve for x
    x = 11,678,190.02/5,560.25
  6. Step 6: Final answer
    x = 2,100.30

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1.5x scale

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.