Home / 2,391.70-3,299.34-1,551.37

Finding the Fourth Proportional to 2,391.70, 3,299.34 and 1,551.37

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Solution

The fourth proportional to 2,391.70, 3,299.34 and 1,551.37 is: 2,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.70 : 3,299.34 = 1,551.37 : x
  2. Step 2: Convert to fraction form
    2,391.70/3,299.34 = 1,551.37/x
  3. Step 3: Cross multiply
    2,391.70x = 3,299.34 × 1,551.37
  4. Step 4: Simplify right side
    2,391.70x = 5,118,497.10
  5. Step 5: Solve for x
    x = 5,118,497.10/2,391.70
  6. Step 6: Final answer
    x = 2,140.11

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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.