Home / 7,080.13-10,623.10-3,129.30

Finding the Fourth Proportional to 7,080.13, 10,623.10 and 3,129.30

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Solution

The fourth proportional to 7,080.13, 10,623.10 and 3,129.30 is: 4,695.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.13 : 10,623.10 = 3,129.30 : x
  2. Step 2: Convert to fraction form
    7,080.13/10,623.10 = 3,129.30/x
  3. Step 3: Cross multiply
    7,080.13x = 10,623.10 × 3,129.30
  4. Step 4: Simplify right side
    7,080.13x = 33,242,866.83
  5. Step 5: Solve for x
    x = 33,242,866.83/7,080.13
  6. Step 6: Final answer
    x = 4,695.23

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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.