Home / 2,789.18-4,182.36-1,557.44

Finding the Fourth Proportional to 2,789.18, 4,182.36 and 1,557.44

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Solution

The fourth proportional to 2,789.18, 4,182.36 and 1,557.44 is: 2,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.18 : 4,182.36 = 1,557.44 : x
  2. Step 2: Convert to fraction form
    2,789.18/4,182.36 = 1,557.44/x
  3. Step 3: Cross multiply
    2,789.18x = 4,182.36 × 1,557.44
  4. Step 4: Simplify right side
    2,789.18x = 6,513,774.76
  5. Step 5: Solve for x
    x = 6,513,774.76/2,789.18
  6. Step 6: Final answer
    x = 2,335.37

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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.