Home / 5,385.39-8,077.96-2,612.31

Finding the Fourth Proportional to 5,385.39, 8,077.96 and 2,612.31

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Solution

The fourth proportional to 5,385.39, 8,077.96 and 2,612.31 is: 3,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.39 : 8,077.96 = 2,612.31 : x
  2. Step 2: Convert to fraction form
    5,385.39/8,077.96 = 2,612.31/x
  3. Step 3: Cross multiply
    5,385.39x = 8,077.96 × 2,612.31
  4. Step 4: Simplify right side
    5,385.39x = 21,102,135.69
  5. Step 5: Solve for x
    x = 21,102,135.69/5,385.39
  6. Step 6: Final answer
    x = 3,918.40

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1.5x scale

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.