Home / 6,278.79-8,660.55-4,043.49

Finding the Fourth Proportional to 6,278.79, 8,660.55 and 4,043.49

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Solution

The fourth proportional to 6,278.79, 8,660.55 and 4,043.49 is: 5,577.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.79 : 8,660.55 = 4,043.49 : x
  2. Step 2: Convert to fraction form
    6,278.79/8,660.55 = 4,043.49/x
  3. Step 3: Cross multiply
    6,278.79x = 8,660.55 × 4,043.49
  4. Step 4: Simplify right side
    6,278.79x = 35,018,847.32
  5. Step 5: Solve for x
    x = 35,018,847.32/6,278.79
  6. Step 6: Final answer
    x = 5,577.32

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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.