Home / 7,130.04-10,691.44-3,380.68

Finding the Fourth Proportional to 7,130.04, 10,691.44 and 3,380.68

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Solution

The fourth proportional to 7,130.04, 10,691.44 and 3,380.68 is: 5,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.04 : 10,691.44 = 3,380.68 : x
  2. Step 2: Convert to fraction form
    7,130.04/10,691.44 = 3,380.68/x
  3. Step 3: Cross multiply
    7,130.04x = 10,691.44 × 3,380.68
  4. Step 4: Simplify right side
    7,130.04x = 36,144,337.38
  5. Step 5: Solve for x
    x = 36,144,337.38/7,130.04
  6. Step 6: Final answer
    x = 5,069.30

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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.