Home / 6,455.86-9,684.15-1,838.50

Finding the Fourth Proportional to 6,455.86, 9,684.15 and 1,838.50

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Solution

The fourth proportional to 6,455.86, 9,684.15 and 1,838.50 is: 2,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.86 : 9,684.15 = 1,838.50 : x
  2. Step 2: Convert to fraction form
    6,455.86/9,684.15 = 1,838.50/x
  3. Step 3: Cross multiply
    6,455.86x = 9,684.15 × 1,838.50
  4. Step 4: Simplify right side
    6,455.86x = 17,804,309.78
  5. Step 5: Solve for x
    x = 17,804,309.78/6,455.86
  6. Step 6: Final answer
    x = 2,757.85

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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.