Home / 6,156.92-8,490.88-4,170.40

Finding the Fourth Proportional to 6,156.92, 8,490.88 and 4,170.40

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Solution

The fourth proportional to 6,156.92, 8,490.88 and 4,170.40 is: 5,751.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,156.92 : 8,490.88 = 4,170.40 : x
  2. Step 2: Convert to fraction form
    6,156.92/8,490.88 = 4,170.40/x
  3. Step 3: Cross multiply
    6,156.92x = 8,490.88 × 4,170.40
  4. Step 4: Simplify right side
    6,156.92x = 35,410,365.95
  5. Step 5: Solve for x
    x = 35,410,365.95/6,156.92
  6. Step 6: Final answer
    x = 5,751.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.