Home / 4,087.80-5,638.65-2,493.69

Finding the Fourth Proportional to 4,087.80, 5,638.65 and 2,493.69

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Solution

The fourth proportional to 4,087.80, 5,638.65 and 2,493.69 is: 3,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.80 : 5,638.65 = 2,493.69 : x
  2. Step 2: Convert to fraction form
    4,087.80/5,638.65 = 2,493.69/x
  3. Step 3: Cross multiply
    4,087.80x = 5,638.65 × 2,493.69
  4. Step 4: Simplify right side
    4,087.80x = 14,061,045.12
  5. Step 5: Solve for x
    x = 14,061,045.12/4,087.80
  6. Step 6: Final answer
    x = 3,439.76

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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.