Home / 7,690.04-11,529.30-4,228.28

Finding the Fourth Proportional to 7,690.04, 11,529.30 and 4,228.28

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Solution

The fourth proportional to 7,690.04, 11,529.30 and 4,228.28 is: 6,339.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.04 : 11,529.30 = 4,228.28 : x
  2. Step 2: Convert to fraction form
    7,690.04/11,529.30 = 4,228.28/x
  3. Step 3: Cross multiply
    7,690.04x = 11,529.30 × 4,228.28
  4. Step 4: Simplify right side
    7,690.04x = 48,749,108.60
  5. Step 5: Solve for x
    x = 48,749,108.60/7,690.04
  6. Step 6: Final answer
    x = 6,339.25

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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.