Home / 3,136.09-4,327.55-1,719.75

Finding the Fourth Proportional to 3,136.09, 4,327.55 and 1,719.75

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Solution

The fourth proportional to 3,136.09, 4,327.55 and 1,719.75 is: 2,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.09 : 4,327.55 = 1,719.75 : x
  2. Step 2: Convert to fraction form
    3,136.09/4,327.55 = 1,719.75/x
  3. Step 3: Cross multiply
    3,136.09x = 4,327.55 × 1,719.75
  4. Step 4: Simplify right side
    3,136.09x = 7,442,295.51
  5. Step 5: Solve for x
    x = 7,442,295.51/3,136.09
  6. Step 6: Final answer
    x = 2,373.11

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1.5x scale

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.