Home / 3,136.32-4,327.96-1,720.02

Finding the Fourth Proportional to 3,136.32, 4,327.96 and 1,720.02

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Solution

The fourth proportional to 3,136.32, 4,327.96 and 1,720.02 is: 2,373.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.32 : 4,327.96 = 1,720.02 : x
  2. Step 2: Convert to fraction form
    3,136.32/4,327.96 = 1,720.02/x
  3. Step 3: Cross multiply
    3,136.32x = 4,327.96 × 1,720.02
  4. Step 4: Simplify right side
    3,136.32x = 7,444,177.76
  5. Step 5: Solve for x
    x = 7,444,177.76/3,136.32
  6. Step 6: Final answer
    x = 2,373.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.