Home / 3,327.70-4,987.55-1,378.90

Finding the Fourth Proportional to 3,327.70, 4,987.55 and 1,378.90

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Solution

The fourth proportional to 3,327.70, 4,987.55 and 1,378.90 is: 2,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,327.70 : 4,987.55 = 1,378.90 : x
  2. Step 2: Convert to fraction form
    3,327.70/4,987.55 = 1,378.90/x
  3. Step 3: Cross multiply
    3,327.70x = 4,987.55 × 1,378.90
  4. Step 4: Simplify right side
    3,327.70x = 6,877,332.70
  5. Step 5: Solve for x
    x = 6,877,332.70/3,327.70
  6. Step 6: Final answer
    x = 2,066.69

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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.