Home / 5,277.40-7,282.70-2,919.56

Finding the Fourth Proportional to 5,277.40, 7,282.70 and 2,919.56

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Solution

The fourth proportional to 5,277.40, 7,282.70 and 2,919.56 is: 4,028.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.40 : 7,282.70 = 2,919.56 : x
  2. Step 2: Convert to fraction form
    5,277.40/7,282.70 = 2,919.56/x
  3. Step 3: Cross multiply
    5,277.40x = 7,282.70 × 2,919.56
  4. Step 4: Simplify right side
    5,277.40x = 21,262,279.61
  5. Step 5: Solve for x
    x = 21,262,279.61/5,277.40
  6. Step 6: Final answer
    x = 4,028.93

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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.