Home / 4,259.25-6,386.45-1,918.35

Finding the Fourth Proportional to 4,259.25, 6,386.45 and 1,918.35

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Solution

The fourth proportional to 4,259.25, 6,386.45 and 1,918.35 is: 2,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.25 : 6,386.45 = 1,918.35 : x
  2. Step 2: Convert to fraction form
    4,259.25/6,386.45 = 1,918.35/x
  3. Step 3: Cross multiply
    4,259.25x = 6,386.45 × 1,918.35
  4. Step 4: Simplify right side
    4,259.25x = 12,251,436.77
  5. Step 5: Solve for x
    x = 12,251,436.77/4,259.25
  6. Step 6: Final answer
    x = 2,876.43

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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.