Home / 4,709.88-6,499.86-2,720.70

Finding the Fourth Proportional to 4,709.88, 6,499.86 and 2,720.70

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Solution

The fourth proportional to 4,709.88, 6,499.86 and 2,720.70 is: 3,754.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.88 : 6,499.86 = 2,720.70 : x
  2. Step 2: Convert to fraction form
    4,709.88/6,499.86 = 2,720.70/x
  3. Step 3: Cross multiply
    4,709.88x = 6,499.86 × 2,720.70
  4. Step 4: Simplify right side
    4,709.88x = 17,684,169.10
  5. Step 5: Solve for x
    x = 17,684,169.10/4,709.88
  6. Step 6: Final answer
    x = 3,754.70

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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.