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Finding the Fourth Proportional to 1,936.19, 2,904.42 and 637.67

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Solution

The fourth proportional to 1,936.19, 2,904.42 and 637.67 is: 956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.19 : 2,904.42 = 637.67 : x
  2. Step 2: Convert to fraction form
    1,936.19/2,904.42 = 637.67/x
  3. Step 3: Cross multiply
    1,936.19x = 2,904.42 × 637.67
  4. Step 4: Simplify right side
    1,936.19x = 1,852,061.50
  5. Step 5: Solve for x
    x = 1,852,061.50/1,936.19
  6. Step 6: Final answer
    x = 956.55

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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.