Home / 5,140.70-7,705.90-2,369.37

Finding the Fourth Proportional to 5,140.70, 7,705.90 and 2,369.37

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Solution

The fourth proportional to 5,140.70, 7,705.90 and 2,369.37 is: 3,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.70 : 7,705.90 = 2,369.37 : x
  2. Step 2: Convert to fraction form
    5,140.70/7,705.90 = 2,369.37/x
  3. Step 3: Cross multiply
    5,140.70x = 7,705.90 × 2,369.37
  4. Step 4: Simplify right side
    5,140.70x = 18,258,131.24
  5. Step 5: Solve for x
    x = 18,258,131.24/5,140.70
  6. Step 6: Final answer
    x = 3,551.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.