Home / 2,136.85-3,205.60-904.26

Finding the Fourth Proportional to 2,136.85, 3,205.60 and 904.26

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Solution

The fourth proportional to 2,136.85, 3,205.60 and 904.26 is: 1,356.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.85 : 3,205.60 = 904.26 : x
  2. Step 2: Convert to fraction form
    2,136.85/3,205.60 = 904.26/x
  3. Step 3: Cross multiply
    2,136.85x = 3,205.60 × 904.26
  4. Step 4: Simplify right side
    2,136.85x = 2,898,695.86
  5. Step 5: Solve for x
    x = 2,898,695.86/2,136.85
  6. Step 6: Final answer
    x = 1,356.53

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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.