Home / 4,717.64-6,511.86-2,856.20

Finding the Fourth Proportional to 4,717.64, 6,511.86 and 2,856.20

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Solution

The fourth proportional to 4,717.64, 6,511.86 and 2,856.20 is: 3,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,717.64 : 6,511.86 = 2,856.20 : x
  2. Step 2: Convert to fraction form
    4,717.64/6,511.86 = 2,856.20/x
  3. Step 3: Cross multiply
    4,717.64x = 6,511.86 × 2,856.20
  4. Step 4: Simplify right side
    4,717.64x = 18,599,174.53
  5. Step 5: Solve for x
    x = 18,599,174.53/4,717.64
  6. Step 6: Final answer
    x = 3,942.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.