Home / 3,318.16-4,977.68-2,539.64

Finding the Fourth Proportional to 3,318.16, 4,977.68 and 2,539.64

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Solution

The fourth proportional to 3,318.16, 4,977.68 and 2,539.64 is: 3,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.16 : 4,977.68 = 2,539.64 : x
  2. Step 2: Convert to fraction form
    3,318.16/4,977.68 = 2,539.64/x
  3. Step 3: Cross multiply
    3,318.16x = 4,977.68 × 2,539.64
  4. Step 4: Simplify right side
    3,318.16x = 12,641,515.24
  5. Step 5: Solve for x
    x = 12,641,515.24/3,318.16
  6. Step 6: Final answer
    x = 3,809.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.