Home / 5,140.32-7,704.72-2,545.08

Finding the Fourth Proportional to 5,140.32, 7,704.72 and 2,545.08

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Solution

The fourth proportional to 5,140.32, 7,704.72 and 2,545.08 is: 3,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.32 : 7,704.72 = 2,545.08 : x
  2. Step 2: Convert to fraction form
    5,140.32/7,704.72 = 2,545.08/x
  3. Step 3: Cross multiply
    5,140.32x = 7,704.72 × 2,545.08
  4. Step 4: Simplify right side
    5,140.32x = 19,609,128.78
  5. Step 5: Solve for x
    x = 19,609,128.78/5,140.32
  6. Step 6: Final answer
    x = 3,814.77

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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.