Home / 4,720.12-6,515.58-3,147.64

Finding the Fourth Proportional to 4,720.12, 6,515.58 and 3,147.64

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Solution

The fourth proportional to 4,720.12, 6,515.58 and 3,147.64 is: 4,344.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.12 : 6,515.58 = 3,147.64 : x
  2. Step 2: Convert to fraction form
    4,720.12/6,515.58 = 3,147.64/x
  3. Step 3: Cross multiply
    4,720.12x = 6,515.58 × 3,147.64
  4. Step 4: Simplify right side
    4,720.12x = 20,508,700.23
  5. Step 5: Solve for x
    x = 20,508,700.23/4,720.12
  6. Step 6: Final answer
    x = 4,344.95

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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.