Home / 6,490.27-8,960.66-4,255.39

Finding the Fourth Proportional to 6,490.27, 8,960.66 and 4,255.39

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Solution

The fourth proportional to 6,490.27, 8,960.66 and 4,255.39 is: 5,875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.27 : 8,960.66 = 4,255.39 : x
  2. Step 2: Convert to fraction form
    6,490.27/8,960.66 = 4,255.39/x
  3. Step 3: Cross multiply
    6,490.27x = 8,960.66 × 4,255.39
  4. Step 4: Simplify right side
    6,490.27x = 38,131,102.96
  5. Step 5: Solve for x
    x = 38,131,102.96/6,490.27
  6. Step 6: Final answer
    x = 5,875.12

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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.