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Finding the Fourth Proportional to 3,387.53, 4,674.77 and 1,895.45

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Solution

The fourth proportional to 3,387.53, 4,674.77 and 1,895.45 is: 2,615.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.53 : 4,674.77 = 1,895.45 : x
  2. Step 2: Convert to fraction form
    3,387.53/4,674.77 = 1,895.45/x
  3. Step 3: Cross multiply
    3,387.53x = 4,674.77 × 1,895.45
  4. Step 4: Simplify right side
    3,387.53x = 8,860,792.80
  5. Step 5: Solve for x
    x = 8,860,792.80/3,387.53
  6. Step 6: Final answer
    x = 2,615.71

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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.