Home / 5,095.72-7,643.60-2,631.28

Finding the Fourth Proportional to 5,095.72, 7,643.60 and 2,631.28

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Solution

The fourth proportional to 5,095.72, 7,643.60 and 2,631.28 is: 3,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,095.72 : 7,643.60 = 2,631.28 : x
  2. Step 2: Convert to fraction form
    5,095.72/7,643.60 = 2,631.28/x
  3. Step 3: Cross multiply
    5,095.72x = 7,643.60 × 2,631.28
  4. Step 4: Simplify right side
    5,095.72x = 20,112,451.81
  5. Step 5: Solve for x
    x = 20,112,451.81/5,095.72
  6. Step 6: Final answer
    x = 3,946.93

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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.