Home / 3,103.75-4,281.96-1,776.74

Finding the Fourth Proportional to 3,103.75, 4,281.96 and 1,776.74

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Solution

The fourth proportional to 3,103.75, 4,281.96 and 1,776.74 is: 2,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.75 : 4,281.96 = 1,776.74 : x
  2. Step 2: Convert to fraction form
    3,103.75/4,281.96 = 1,776.74/x
  3. Step 3: Cross multiply
    3,103.75x = 4,281.96 × 1,776.74
  4. Step 4: Simplify right side
    3,103.75x = 7,607,929.61
  5. Step 5: Solve for x
    x = 7,607,929.61/3,103.75
  6. Step 6: Final answer
    x = 2,451.21

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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.