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Finding the Fourth Proportional to 2,438.77, 3,658.46 and 794.87

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Solution

The fourth proportional to 2,438.77, 3,658.46 and 794.87 is: 1,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.77 : 3,658.46 = 794.87 : x
  2. Step 2: Convert to fraction form
    2,438.77/3,658.46 = 794.87/x
  3. Step 3: Cross multiply
    2,438.77x = 3,658.46 × 794.87
  4. Step 4: Simplify right side
    2,438.77x = 2,908,000.10
  5. Step 5: Solve for x
    x = 2,908,000.10/2,438.77
  6. Step 6: Final answer
    x = 1,192.40

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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.