Home / 2,390.91-3,298.09-1,505.17

Finding the Fourth Proportional to 2,390.91, 3,298.09 and 1,505.17

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Solution

The fourth proportional to 2,390.91, 3,298.09 and 1,505.17 is: 2,076.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.91 : 3,298.09 = 1,505.17 : x
  2. Step 2: Convert to fraction form
    2,390.91/3,298.09 = 1,505.17/x
  3. Step 3: Cross multiply
    2,390.91x = 3,298.09 × 1,505.17
  4. Step 4: Simplify right side
    2,390.91x = 4,964,186.13
  5. Step 5: Solve for x
    x = 4,964,186.13/2,390.91
  6. Step 6: Final answer
    x = 2,076.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.