Home / 4,709.80-6,499.56-2,720.35

Finding the Fourth Proportional to 4,709.80, 6,499.56 and 2,720.35

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Solution

The fourth proportional to 4,709.80, 6,499.56 and 2,720.35 is: 3,754.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.80 : 6,499.56 = 2,720.35 : x
  2. Step 2: Convert to fraction form
    4,709.80/6,499.56 = 2,720.35/x
  3. Step 3: Cross multiply
    4,709.80x = 6,499.56 × 2,720.35
  4. Step 4: Simplify right side
    4,709.80x = 17,681,078.05
  5. Step 5: Solve for x
    x = 17,681,078.05/4,709.80
  6. Step 6: Final answer
    x = 3,754.10

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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.