Home / 2,088.57-3,129.62-1,854.79

Finding the Fourth Proportional to 2,088.57, 3,129.62 and 1,854.79

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Solution

The fourth proportional to 2,088.57, 3,129.62 and 1,854.79 is: 2,779.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.57 : 3,129.62 = 1,854.79 : x
  2. Step 2: Convert to fraction form
    2,088.57/3,129.62 = 1,854.79/x
  3. Step 3: Cross multiply
    2,088.57x = 3,129.62 × 1,854.79
  4. Step 4: Simplify right side
    2,088.57x = 5,804,787.88
  5. Step 5: Solve for x
    x = 5,804,787.88/2,088.57
  6. Step 6: Final answer
    x = 2,779.31

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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.