Home / 2,884.85-3,981.35-1,705.70

Finding the Fourth Proportional to 2,884.85, 3,981.35 and 1,705.70

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Solution

The fourth proportional to 2,884.85, 3,981.35 and 1,705.70 is: 2,354.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.85 : 3,981.35 = 1,705.70 : x
  2. Step 2: Convert to fraction form
    2,884.85/3,981.35 = 1,705.70/x
  3. Step 3: Cross multiply
    2,884.85x = 3,981.35 × 1,705.70
  4. Step 4: Simplify right side
    2,884.85x = 6,790,960.26
  5. Step 5: Solve for x
    x = 6,790,960.26/2,884.85
  6. Step 6: Final answer
    x = 2,354.01

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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.