Home / 2,920.85-4,380.56-1,459.66

Finding the Fourth Proportional to 2,920.85, 4,380.56 and 1,459.66

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Solution

The fourth proportional to 2,920.85, 4,380.56 and 1,459.66 is: 2,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.85 : 4,380.56 = 1,459.66 : x
  2. Step 2: Convert to fraction form
    2,920.85/4,380.56 = 1,459.66/x
  3. Step 3: Cross multiply
    2,920.85x = 4,380.56 × 1,459.66
  4. Step 4: Simplify right side
    2,920.85x = 6,394,128.21
  5. Step 5: Solve for x
    x = 6,394,128.21/2,920.85
  6. Step 6: Final answer
    x = 2,189.13

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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.