Home / 6,440.50-8,889.51-3,647.62

Finding the Fourth Proportional to 6,440.50, 8,889.51 and 3,647.62

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Solution

The fourth proportional to 6,440.50, 8,889.51 and 3,647.62 is: 5,034.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.50 : 8,889.51 = 3,647.62 : x
  2. Step 2: Convert to fraction form
    6,440.50/8,889.51 = 3,647.62/x
  3. Step 3: Cross multiply
    6,440.50x = 8,889.51 × 3,647.62
  4. Step 4: Simplify right side
    6,440.50x = 32,425,554.47
  5. Step 5: Solve for x
    x = 32,425,554.47/6,440.50
  6. Step 6: Final answer
    x = 5,034.63

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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.