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Finding the Fourth Proportional to 637.36, 874.80 and 610.64

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Solution

The fourth proportional to 637.36, 874.80 and 610.64 is: 838.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.36 : 874.80 = 610.64 : x
  2. Step 2: Convert to fraction form
    637.36/874.80 = 610.64/x
  3. Step 3: Cross multiply
    637.36x = 874.80 × 610.64
  4. Step 4: Simplify right side
    637.36x = 534,187.87
  5. Step 5: Solve for x
    x = 534,187.87/637.36
  6. Step 6: Final answer
    x = 838.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.