Home / 5,177.07-7,765.58-1,281.48

Finding the Fourth Proportional to 5,177.07, 7,765.58 and 1,281.48

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Solution

The fourth proportional to 5,177.07, 7,765.58 and 1,281.48 is: 1,922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.07 : 7,765.58 = 1,281.48 : x
  2. Step 2: Convert to fraction form
    5,177.07/7,765.58 = 1,281.48/x
  3. Step 3: Cross multiply
    5,177.07x = 7,765.58 × 1,281.48
  4. Step 4: Simplify right side
    5,177.07x = 9,951,429.05
  5. Step 5: Solve for x
    x = 9,951,429.05/5,177.07
  6. Step 6: Final answer
    x = 1,922.21

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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.