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Finding the Fourth Proportional to 2,997.39, 4,487.60 and 1,588.60

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Solution

The fourth proportional to 2,997.39, 4,487.60 and 1,588.60 is: 2,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.39 : 4,487.60 = 1,588.60 : x
  2. Step 2: Convert to fraction form
    2,997.39/4,487.60 = 1,588.60/x
  3. Step 3: Cross multiply
    2,997.39x = 4,487.60 × 1,588.60
  4. Step 4: Simplify right side
    2,997.39x = 7,128,978.92
  5. Step 5: Solve for x
    x = 7,128,978.92/2,997.39
  6. Step 6: Final answer
    x = 2,378.40

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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.