Home / 7,137.04-10,700.99-3,431.89

Finding the Fourth Proportional to 7,137.04, 10,700.99 and 3,431.89

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Solution

The fourth proportional to 7,137.04, 10,700.99 and 3,431.89 is: 5,145.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.04 : 10,700.99 = 3,431.89 : x
  2. Step 2: Convert to fraction form
    7,137.04/10,700.99 = 3,431.89/x
  3. Step 3: Cross multiply
    7,137.04x = 10,700.99 × 3,431.89
  4. Step 4: Simplify right side
    7,137.04x = 36,724,549.91
  5. Step 5: Solve for x
    x = 36,724,549.91/7,137.04
  6. Step 6: Final answer
    x = 5,145.63

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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.