Home / 2,905.32-4,008.25-1,785.36

Finding the Fourth Proportional to 2,905.32, 4,008.25 and 1,785.36

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Solution

The fourth proportional to 2,905.32, 4,008.25 and 1,785.36 is: 2,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.32 : 4,008.25 = 1,785.36 : x
  2. Step 2: Convert to fraction form
    2,905.32/4,008.25 = 1,785.36/x
  3. Step 3: Cross multiply
    2,905.32x = 4,008.25 × 1,785.36
  4. Step 4: Simplify right side
    2,905.32x = 7,156,169.22
  5. Step 5: Solve for x
    x = 7,156,169.22/2,905.32
  6. Step 6: Final answer
    x = 2,463.13

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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.