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Finding the Fourth Proportional to 637.94, 880.65 and 451.58

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Solution

The fourth proportional to 637.94, 880.65 and 451.58 is: 623.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.94 : 880.65 = 451.58 : x
  2. Step 2: Convert to fraction form
    637.94/880.65 = 451.58/x
  3. Step 3: Cross multiply
    637.94x = 880.65 × 451.58
  4. Step 4: Simplify right side
    637.94x = 397,683.93
  5. Step 5: Solve for x
    x = 397,683.93/637.94
  6. Step 6: Final answer
    x = 623.39

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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.