Home / 3,856.47-5,784.45-1,516.88

Finding the Fourth Proportional to 3,856.47, 5,784.45 and 1,516.88

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Solution

The fourth proportional to 3,856.47, 5,784.45 and 1,516.88 is: 2,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.47 : 5,784.45 = 1,516.88 : x
  2. Step 2: Convert to fraction form
    3,856.47/5,784.45 = 1,516.88/x
  3. Step 3: Cross multiply
    3,856.47x = 5,784.45 × 1,516.88
  4. Step 4: Simplify right side
    3,856.47x = 8,774,287.59
  5. Step 5: Solve for x
    x = 8,774,287.59/3,856.47
  6. Step 6: Final answer
    x = 2,275.21

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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.