Home / 4,815.66-6,646.71-2,720.46

Finding the Fourth Proportional to 4,815.66, 6,646.71 and 2,720.46

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Solution

The fourth proportional to 4,815.66, 6,646.71 and 2,720.46 is: 3,754.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.66 : 6,646.71 = 2,720.46 : x
  2. Step 2: Convert to fraction form
    4,815.66/6,646.71 = 2,720.46/x
  3. Step 3: Cross multiply
    4,815.66x = 6,646.71 × 2,720.46
  4. Step 4: Simplify right side
    4,815.66x = 18,082,108.69
  5. Step 5: Solve for x
    x = 18,082,108.69/4,815.66
  6. Step 6: Final answer
    x = 3,754.86

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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.