Home / 6,474.56-8,928-4,238.40

Finding the Fourth Proportional to 6,474.56, 8,928 and 4,238.40

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Solution

The fourth proportional to 6,474.56, 8,928 and 4,238.40 is: 5,844.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.56 : 8,928 = 4,238.40 : x
  2. Step 2: Convert to fraction form
    6,474.56/8,928 = 4,238.40/x
  3. Step 3: Cross multiply
    6,474.56x = 8,928 × 4,238.40
  4. Step 4: Simplify right side
    6,474.56x = 37,840,435.20
  5. Step 5: Solve for x
    x = 37,840,435.20/6,474.56
  6. Step 6: Final answer
    x = 5,844.48

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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.