Home / 3,098.20-4,275.51-1,771.89

Finding the Fourth Proportional to 3,098.20, 4,275.51 and 1,771.89

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Solution

The fourth proportional to 3,098.20, 4,275.51 and 1,771.89 is: 2,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.20 : 4,275.51 = 1,771.89 : x
  2. Step 2: Convert to fraction form
    3,098.20/4,275.51 = 1,771.89/x
  3. Step 3: Cross multiply
    3,098.20x = 4,275.51 × 1,771.89
  4. Step 4: Simplify right side
    3,098.20x = 7,575,733.41
  5. Step 5: Solve for x
    x = 7,575,733.41/3,098.20
  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.