Home / 5,128.91-7,690.56-3,463.01

Finding the Fourth Proportional to 5,128.91, 7,690.56 and 3,463.01

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Solution

The fourth proportional to 5,128.91, 7,690.56 and 3,463.01 is: 5,192.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.91 : 7,690.56 = 3,463.01 : x
  2. Step 2: Convert to fraction form
    5,128.91/7,690.56 = 3,463.01/x
  3. Step 3: Cross multiply
    5,128.91x = 7,690.56 × 3,463.01
  4. Step 4: Simplify right side
    5,128.91x = 26,632,486.19
  5. Step 5: Solve for x
    x = 26,632,486.19/5,128.91
  6. Step 6: Final answer
    x = 5,192.62

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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.