Home / 7,130.16-10,694.40-2,199.36

Finding the Fourth Proportional to 7,130.16, 10,694.40 and 2,199.36

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Solution

The fourth proportional to 7,130.16, 10,694.40 and 2,199.36 is: 3,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.16 : 10,694.40 = 2,199.36 : x
  2. Step 2: Convert to fraction form
    7,130.16/10,694.40 = 2,199.36/x
  3. Step 3: Cross multiply
    7,130.16x = 10,694.40 × 2,199.36
  4. Step 4: Simplify right side
    7,130.16x = 23,520,835.58
  5. Step 5: Solve for x
    x = 23,520,835.58/7,130.16
  6. Step 6: Final answer
    x = 3,298.78

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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.