Home / 3,098.21-4,275.45-1,771.92

Finding the Fourth Proportional to 3,098.21, 4,275.45 and 1,771.92

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Solution

The fourth proportional to 3,098.21, 4,275.45 and 1,771.92 is: 2,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.21 : 4,275.45 = 1,771.92 : x
  2. Step 2: Convert to fraction form
    3,098.21/4,275.45 = 1,771.92/x
  3. Step 3: Cross multiply
    3,098.21x = 4,275.45 × 1,771.92
  4. Step 4: Simplify right side
    3,098.21x = 7,575,755.36
  5. Step 5: Solve for x
    x = 7,575,755.36/3,098.21
  6. Step 6: Final answer
    x = 2,445.21

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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.