Home / 3,808.89-5,254.74-2,391.98

Finding the Fourth Proportional to 3,808.89, 5,254.74 and 2,391.98

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Solution

The fourth proportional to 3,808.89, 5,254.74 and 2,391.98 is: 3,299.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.89 : 5,254.74 = 2,391.98 : x
  2. Step 2: Convert to fraction form
    3,808.89/5,254.74 = 2,391.98/x
  3. Step 3: Cross multiply
    3,808.89x = 5,254.74 × 2,391.98
  4. Step 4: Simplify right side
    3,808.89x = 12,569,206.71
  5. Step 5: Solve for x
    x = 12,569,206.71/3,808.89
  6. Step 6: Final answer
    x = 3,299.97

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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.