Home / 1,905.04-2,854.50-1,415.62

Finding the Fourth Proportional to 1,905.04, 2,854.50 and 1,415.62

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Solution

The fourth proportional to 1,905.04, 2,854.50 and 1,415.62 is: 2,121.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.04 : 2,854.50 = 1,415.62 : x
  2. Step 2: Convert to fraction form
    1,905.04/2,854.50 = 1,415.62/x
  3. Step 3: Cross multiply
    1,905.04x = 2,854.50 × 1,415.62
  4. Step 4: Simplify right side
    1,905.04x = 4,040,887.29
  5. Step 5: Solve for x
    x = 4,040,887.29/1,905.04
  6. Step 6: Final answer
    x = 2,121.16

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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.