Home / 2,252.02-3,376.90-770.80

Finding the Fourth Proportional to 2,252.02, 3,376.90 and 770.80

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Solution

The fourth proportional to 2,252.02, 3,376.90 and 770.80 is: 1,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.02 : 3,376.90 = 770.80 : x
  2. Step 2: Convert to fraction form
    2,252.02/3,376.90 = 770.80/x
  3. Step 3: Cross multiply
    2,252.02x = 3,376.90 × 770.80
  4. Step 4: Simplify right side
    2,252.02x = 2,602,914.52
  5. Step 5: Solve for x
    x = 2,602,914.52/2,252.02
  6. Step 6: Final answer
    x = 1,155.81

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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.