Home / 3,136.96-4,329.12-1,810.84

Finding the Fourth Proportional to 3,136.96, 4,329.12 and 1,810.84

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Solution

The fourth proportional to 3,136.96, 4,329.12 and 1,810.84 is: 2,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.96 : 4,329.12 = 1,810.84 : x
  2. Step 2: Convert to fraction form
    3,136.96/4,329.12 = 1,810.84/x
  3. Step 3: Cross multiply
    3,136.96x = 4,329.12 × 1,810.84
  4. Step 4: Simplify right side
    3,136.96x = 7,839,343.66
  5. Step 5: Solve for x
    x = 7,839,343.66/3,136.96
  6. Step 6: Final answer
    x = 2,499.03

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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.