Home / 3,319.90-4,581.42-1,827.78

Finding the Fourth Proportional to 3,319.90, 4,581.42 and 1,827.78

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Solution

The fourth proportional to 3,319.90, 4,581.42 and 1,827.78 is: 2,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.90 : 4,581.42 = 1,827.78 : x
  2. Step 2: Convert to fraction form
    3,319.90/4,581.42 = 1,827.78/x
  3. Step 3: Cross multiply
    3,319.90x = 4,581.42 × 1,827.78
  4. Step 4: Simplify right side
    3,319.90x = 8,373,827.85
  5. Step 5: Solve for x
    x = 8,373,827.85/3,319.90
  6. Step 6: Final answer
    x = 2,522.31

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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.