Home / 6,453.57-8,905.40-3,620.55

Finding the Fourth Proportional to 6,453.57, 8,905.40 and 3,620.55

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Solution

The fourth proportional to 6,453.57, 8,905.40 and 3,620.55 is: 4,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.57 : 8,905.40 = 3,620.55 : x
  2. Step 2: Convert to fraction form
    6,453.57/8,905.40 = 3,620.55/x
  3. Step 3: Cross multiply
    6,453.57x = 8,905.40 × 3,620.55
  4. Step 4: Simplify right side
    6,453.57x = 32,242,427.29
  5. Step 5: Solve for x
    x = 32,242,427.29/6,453.57
  6. Step 6: Final answer
    x = 4,996.06

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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.