Home / 4,280.10-6,411.78-3,815.70

Finding the Fourth Proportional to 4,280.10, 6,411.78 and 3,815.70

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Solution

The fourth proportional to 4,280.10, 6,411.78 and 3,815.70 is: 5,716.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.10 : 6,411.78 = 3,815.70 : x
  2. Step 2: Convert to fraction form
    4,280.10/6,411.78 = 3,815.70/x
  3. Step 3: Cross multiply
    4,280.10x = 6,411.78 × 3,815.70
  4. Step 4: Simplify right side
    4,280.10x = 24,465,428.95
  5. Step 5: Solve for x
    x = 24,465,428.95/4,280.10
  6. Step 6: Final answer
    x = 5,716.09

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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.