Home / 2,904.30-4,356.45-2,080.80

Finding the Fourth Proportional to 2,904.30, 4,356.45 and 2,080.80

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Solution

The fourth proportional to 2,904.30, 4,356.45 and 2,080.80 is: 3,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.30 : 4,356.45 = 2,080.80 : x
  2. Step 2: Convert to fraction form
    2,904.30/4,356.45 = 2,080.80/x
  3. Step 3: Cross multiply
    2,904.30x = 4,356.45 × 2,080.80
  4. Step 4: Simplify right side
    2,904.30x = 9,064,901.16
  5. Step 5: Solve for x
    x = 9,064,901.16/2,904.30
  6. Step 6: Final answer
    x = 3,121.20

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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.