Home / 4,288.47-6,431.93-1,515.17

Finding the Fourth Proportional to 4,288.47, 6,431.93 and 1,515.17

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Solution

The fourth proportional to 4,288.47, 6,431.93 and 1,515.17 is: 2,272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.47 : 6,431.93 = 1,515.17 : x
  2. Step 2: Convert to fraction form
    4,288.47/6,431.93 = 1,515.17/x
  3. Step 3: Cross multiply
    4,288.47x = 6,431.93 × 1,515.17
  4. Step 4: Simplify right side
    4,288.47x = 9,745,458.69
  5. Step 5: Solve for x
    x = 9,745,458.69/4,288.47
  6. Step 6: Final answer
    x = 2,272.48

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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.