Home / 6,486.28-9,728.51-2,103.77

Finding the Fourth Proportional to 6,486.28, 9,728.51 and 2,103.77

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Solution

The fourth proportional to 6,486.28, 9,728.51 and 2,103.77 is: 3,155.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486.28 : 9,728.51 = 2,103.77 : x
  2. Step 2: Convert to fraction form
    6,486.28/9,728.51 = 2,103.77/x
  3. Step 3: Cross multiply
    6,486.28x = 9,728.51 × 2,103.77
  4. Step 4: Simplify right side
    6,486.28x = 20,466,561.29
  5. Step 5: Solve for x
    x = 20,466,561.29/6,486.28
  6. Step 6: Final answer
    x = 3,155.36

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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.