Home / 2,919.61-4,380.76-1,459.72

Finding the Fourth Proportional to 2,919.61, 4,380.76 and 1,459.72

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Solution

The fourth proportional to 2,919.61, 4,380.76 and 1,459.72 is: 2,190.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.61 : 4,380.76 = 1,459.72 : x
  2. Step 2: Convert to fraction form
    2,919.61/4,380.76 = 1,459.72/x
  3. Step 3: Cross multiply
    2,919.61x = 4,380.76 × 1,459.72
  4. Step 4: Simplify right side
    2,919.61x = 6,394,661.08
  5. Step 5: Solve for x
    x = 6,394,661.08/2,919.61
  6. Step 6: Final answer
    x = 2,190.25

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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.