Home / 3,487.91-4,813.94-2,090.87

Finding the Fourth Proportional to 3,487.91, 4,813.94 and 2,090.87

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Solution

The fourth proportional to 3,487.91, 4,813.94 and 2,090.87 is: 2,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.91 : 4,813.94 = 2,090.87 : x
  2. Step 2: Convert to fraction form
    3,487.91/4,813.94 = 2,090.87/x
  3. Step 3: Cross multiply
    3,487.91x = 4,813.94 × 2,090.87
  4. Step 4: Simplify right side
    3,487.91x = 10,065,322.73
  5. Step 5: Solve for x
    x = 10,065,322.73/3,487.91
  6. Step 6: Final answer
    x = 2,885.77

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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.