Home / 1,222.20-1,834.24-637.35

Finding the Fourth Proportional to 1,222.20, 1,834.24 and 637.35

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Solution

The fourth proportional to 1,222.20, 1,834.24 and 637.35 is: 956.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.20 : 1,834.24 = 637.35 : x
  2. Step 2: Convert to fraction form
    1,222.20/1,834.24 = 637.35/x
  3. Step 3: Cross multiply
    1,222.20x = 1,834.24 × 637.35
  4. Step 4: Simplify right side
    1,222.20x = 1,169,052.86
  5. Step 5: Solve for x
    x = 1,169,052.86/1,222.20
  6. Step 6: Final answer
    x = 956.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.