Home / 5,133.66-7,084.45-2,775.80

Finding the Fourth Proportional to 5,133.66, 7,084.45 and 2,775.80

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Solution

The fourth proportional to 5,133.66, 7,084.45 and 2,775.80 is: 3,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.66 : 7,084.45 = 2,775.80 : x
  2. Step 2: Convert to fraction form
    5,133.66/7,084.45 = 2,775.80/x
  3. Step 3: Cross multiply
    5,133.66x = 7,084.45 × 2,775.80
  4. Step 4: Simplify right side
    5,133.66x = 19,665,016.31
  5. Step 5: Solve for x
    x = 19,665,016.31/5,133.66
  6. Step 6: Final answer
    x = 3,830.60

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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.