Home / 6,439.24-9,643.02-3,141.70

Finding the Fourth Proportional to 6,439.24, 9,643.02 and 3,141.70

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Solution

The fourth proportional to 6,439.24, 9,643.02 and 3,141.70 is: 4,704.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.24 : 9,643.02 = 3,141.70 : x
  2. Step 2: Convert to fraction form
    6,439.24/9,643.02 = 3,141.70/x
  3. Step 3: Cross multiply
    6,439.24x = 9,643.02 × 3,141.70
  4. Step 4: Simplify right side
    6,439.24x = 30,295,475.93
  5. Step 5: Solve for x
    x = 30,295,475.93/6,439.24
  6. Step 6: Final answer
    x = 4,704.82

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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.