Home / 2,136.67-2,945.90-1,817.32

Finding the Fourth Proportional to 2,136.67, 2,945.90 and 1,817.32

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Solution

The fourth proportional to 2,136.67, 2,945.90 and 1,817.32 is: 2,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.67 : 2,945.90 = 1,817.32 : x
  2. Step 2: Convert to fraction form
    2,136.67/2,945.90 = 1,817.32/x
  3. Step 3: Cross multiply
    2,136.67x = 2,945.90 × 1,817.32
  4. Step 4: Simplify right side
    2,136.67x = 5,353,642.99
  5. Step 5: Solve for x
    x = 5,353,642.99/2,136.67
  6. Step 6: Final answer
    x = 2,505.60

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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.