Home / 2,864.31-4,290.76-1,887.45

Finding the Fourth Proportional to 2,864.31, 4,290.76 and 1,887.45

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Solution

The fourth proportional to 2,864.31, 4,290.76 and 1,887.45 is: 2,827.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.31 : 4,290.76 = 1,887.45 : x
  2. Step 2: Convert to fraction form
    2,864.31/4,290.76 = 1,887.45/x
  3. Step 3: Cross multiply
    2,864.31x = 4,290.76 × 1,887.45
  4. Step 4: Simplify right side
    2,864.31x = 8,098,594.96
  5. Step 5: Solve for x
    x = 8,098,594.96/2,864.31
  6. Step 6: Final answer
    x = 2,827.42

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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.