Home / 4,260.86-6,385.91-1,918.37

Finding the Fourth Proportional to 4,260.86, 6,385.91 and 1,918.37

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Solution

The fourth proportional to 4,260.86, 6,385.91 and 1,918.37 is: 2,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.86 : 6,385.91 = 1,918.37 : x
  2. Step 2: Convert to fraction form
    4,260.86/6,385.91 = 1,918.37/x
  3. Step 3: Cross multiply
    4,260.86x = 6,385.91 × 1,918.37
  4. Step 4: Simplify right side
    4,260.86x = 12,250,528.57
  5. Step 5: Solve for x
    x = 12,250,528.57/4,260.86
  6. Step 6: Final answer
    x = 2,875.13

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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.