Home / 5,329.35-7,994.70-2,860.78

Finding the Fourth Proportional to 5,329.35, 7,994.70 and 2,860.78

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Solution

The fourth proportional to 5,329.35, 7,994.70 and 2,860.78 is: 4,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.35 : 7,994.70 = 2,860.78 : x
  2. Step 2: Convert to fraction form
    5,329.35/7,994.70 = 2,860.78/x
  3. Step 3: Cross multiply
    5,329.35x = 7,994.70 × 2,860.78
  4. Step 4: Simplify right side
    5,329.35x = 22,871,077.87
  5. Step 5: Solve for x
    x = 22,871,077.87/5,329.35
  6. Step 6: Final answer
    x = 4,291.53

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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.