Home / 5,137.12-7,089.04-2,899.12

Finding the Fourth Proportional to 5,137.12, 7,089.04 and 2,899.12

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Solution

The fourth proportional to 5,137.12, 7,089.04 and 2,899.12 is: 4,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.12 : 7,089.04 = 2,899.12 : x
  2. Step 2: Convert to fraction form
    5,137.12/7,089.04 = 2,899.12/x
  3. Step 3: Cross multiply
    5,137.12x = 7,089.04 × 2,899.12
  4. Step 4: Simplify right side
    5,137.12x = 20,551,977.64
  5. Step 5: Solve for x
    x = 20,551,977.64/5,137.12
  6. Step 6: Final answer
    x = 4,000.68

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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.