Home / 6,440.43-9,644.80-3,142.89

Finding the Fourth Proportional to 6,440.43, 9,644.80 and 3,142.89

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Solution

The fourth proportional to 6,440.43, 9,644.80 and 3,142.89 is: 4,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.43 : 9,644.80 = 3,142.89 : x
  2. Step 2: Convert to fraction form
    6,440.43/9,644.80 = 3,142.89/x
  3. Step 3: Cross multiply
    6,440.43x = 9,644.80 × 3,142.89
  4. Step 4: Simplify right side
    6,440.43x = 30,312,521.36
  5. Step 5: Solve for x
    x = 30,312,521.36/6,440.43
  6. Step 6: Final answer
    x = 4,706.60

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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.