Home / 6,487.29-9,728.73-2,103.66

Finding the Fourth Proportional to 6,487.29, 9,728.73 and 2,103.66

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Solution

The fourth proportional to 6,487.29, 9,728.73 and 2,103.66 is: 3,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.29 : 9,728.73 = 2,103.66 : x
  2. Step 2: Convert to fraction form
    6,487.29/9,728.73 = 2,103.66/x
  3. Step 3: Cross multiply
    6,487.29x = 9,728.73 × 2,103.66
  4. Step 4: Simplify right side
    6,487.29x = 20,465,940.15
  5. Step 5: Solve for x
    x = 20,465,940.15/6,487.29
  6. Step 6: Final answer
    x = 3,154.77

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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.