Home / 2,885.90-3,982.97-1,707.35

Finding the Fourth Proportional to 2,885.90, 3,982.97 and 1,707.35

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Solution

The fourth proportional to 2,885.90, 3,982.97 and 1,707.35 is: 2,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.90 : 3,982.97 = 1,707.35 : x
  2. Step 2: Convert to fraction form
    2,885.90/3,982.97 = 1,707.35/x
  3. Step 3: Cross multiply
    2,885.90x = 3,982.97 × 1,707.35
  4. Step 4: Simplify right side
    2,885.90x = 6,800,308.18
  5. Step 5: Solve for x
    x = 6,800,308.18/2,885.90
  6. Step 6: Final answer
    x = 2,356.39

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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.