Home / 3,972.94-5,482.40-2,480.76

Finding the Fourth Proportional to 3,972.94, 5,482.40 and 2,480.76

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Solution

The fourth proportional to 3,972.94, 5,482.40 and 2,480.76 is: 3,423.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.94 : 5,482.40 = 2,480.76 : x
  2. Step 2: Convert to fraction form
    3,972.94/5,482.40 = 2,480.76/x
  3. Step 3: Cross multiply
    3,972.94x = 5,482.40 × 2,480.76
  4. Step 4: Simplify right side
    3,972.94x = 13,600,518.62
  5. Step 5: Solve for x
    x = 13,600,518.62/3,972.94
  6. Step 6: Final answer
    x = 3,423.29

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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.