Home / 4,931.88-6,799.32-3,870.78

Finding the Fourth Proportional to 4,931.88, 6,799.32 and 3,870.78

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Solution

The fourth proportional to 4,931.88, 6,799.32 and 3,870.78 is: 5,336.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.88 : 6,799.32 = 3,870.78 : x
  2. Step 2: Convert to fraction form
    4,931.88/6,799.32 = 3,870.78/x
  3. Step 3: Cross multiply
    4,931.88x = 6,799.32 × 3,870.78
  4. Step 4: Simplify right side
    4,931.88x = 26,318,671.87
  5. Step 5: Solve for x
    x = 26,318,671.87/4,931.88
  6. Step 6: Final answer
    x = 5,336.44

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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.