Home / 6,278.35-8,660.41-4,039.51

Finding the Fourth Proportional to 6,278.35, 8,660.41 and 4,039.51

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Solution

The fourth proportional to 6,278.35, 8,660.41 and 4,039.51 is: 5,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.35 : 8,660.41 = 4,039.51 : x
  2. Step 2: Convert to fraction form
    6,278.35/8,660.41 = 4,039.51/x
  3. Step 3: Cross multiply
    6,278.35x = 8,660.41 × 4,039.51
  4. Step 4: Simplify right side
    6,278.35x = 34,983,812.80
  5. Step 5: Solve for x
    x = 34,983,812.80/6,278.35
  6. Step 6: Final answer
    x = 5,572.13

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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.