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Finding the Fourth Proportional to 3,242.73, 4,475.86 and 1,899.55

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Solution

The fourth proportional to 3,242.73, 4,475.86 and 1,899.55 is: 2,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.73 : 4,475.86 = 1,899.55 : x
  2. Step 2: Convert to fraction form
    3,242.73/4,475.86 = 1,899.55/x
  3. Step 3: Cross multiply
    3,242.73x = 4,475.86 × 1,899.55
  4. Step 4: Simplify right side
    3,242.73x = 8,502,120.71
  5. Step 5: Solve for x
    x = 8,502,120.71/3,242.73
  6. Step 6: Final answer
    x = 2,621.90

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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.