Home / 2,827.20-3,901.51-1,585.20

Finding the Fourth Proportional to 2,827.20, 3,901.51 and 1,585.20

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Solution

The fourth proportional to 2,827.20, 3,901.51 and 1,585.20 is: 2,187.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.20 : 3,901.51 = 1,585.20 : x
  2. Step 2: Convert to fraction form
    2,827.20/3,901.51 = 1,585.20/x
  3. Step 3: Cross multiply
    2,827.20x = 3,901.51 × 1,585.20
  4. Step 4: Simplify right side
    2,827.20x = 6,184,673.65
  5. Step 5: Solve for x
    x = 6,184,673.65/2,827.20
  6. Step 6: Final answer
    x = 2,187.56

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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.