Home / 3,017.90-4,164.96-1,691.86

Finding the Fourth Proportional to 3,017.90, 4,164.96 and 1,691.86

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Solution

The fourth proportional to 3,017.90, 4,164.96 and 1,691.86 is: 2,334.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.90 : 4,164.96 = 1,691.86 : x
  2. Step 2: Convert to fraction form
    3,017.90/4,164.96 = 1,691.86/x
  3. Step 3: Cross multiply
    3,017.90x = 4,164.96 × 1,691.86
  4. Step 4: Simplify right side
    3,017.90x = 7,046,518.81
  5. Step 5: Solve for x
    x = 7,046,518.81/3,017.90
  6. Step 6: Final answer
    x = 2,334.91

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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.