Home / 5,177.73-7,763.40-2,218.11

Finding the Fourth Proportional to 5,177.73, 7,763.40 and 2,218.11

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Solution

The fourth proportional to 5,177.73, 7,763.40 and 2,218.11 is: 3,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.73 : 7,763.40 = 2,218.11 : x
  2. Step 2: Convert to fraction form
    5,177.73/7,763.40 = 2,218.11/x
  3. Step 3: Cross multiply
    5,177.73x = 7,763.40 × 2,218.11
  4. Step 4: Simplify right side
    5,177.73x = 17,220,075.17
  5. Step 5: Solve for x
    x = 17,220,075.17/5,177.73
  6. Step 6: Final answer
    x = 3,325.80

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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.