Home / 7,130.24-10,690.08-3,429.44

Finding the Fourth Proportional to 7,130.24, 10,690.08 and 3,429.44

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Solution

The fourth proportional to 7,130.24, 10,690.08 and 3,429.44 is: 5,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.24 : 10,690.08 = 3,429.44 : x
  2. Step 2: Convert to fraction form
    7,130.24/10,690.08 = 3,429.44/x
  3. Step 3: Cross multiply
    7,130.24x = 10,690.08 × 3,429.44
  4. Step 4: Simplify right side
    7,130.24x = 36,660,987.96
  5. Step 5: Solve for x
    x = 36,660,987.96/7,130.24
  6. Step 6: Final answer
    x = 5,141.62

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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.