Home / 5,045.70-7,568.52-2,085.81

Finding the Fourth Proportional to 5,045.70, 7,568.52 and 2,085.81

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Solution

The fourth proportional to 5,045.70, 7,568.52 and 2,085.81 is: 3,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,045.70 : 7,568.52 = 2,085.81 : x
  2. Step 2: Convert to fraction form
    5,045.70/7,568.52 = 2,085.81/x
  3. Step 3: Cross multiply
    5,045.70x = 7,568.52 × 2,085.81
  4. Step 4: Simplify right side
    5,045.70x = 15,786,494.70
  5. Step 5: Solve for x
    x = 15,786,494.70/5,045.70
  6. Step 6: Final answer
    x = 3,128.70

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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.