Home / 3,155.41-4,737.72-2,611.05

Finding the Fourth Proportional to 3,155.41, 4,737.72 and 2,611.05

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Solution

The fourth proportional to 3,155.41, 4,737.72 and 2,611.05 is: 3,920.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.41 : 4,737.72 = 2,611.05 : x
  2. Step 2: Convert to fraction form
    3,155.41/4,737.72 = 2,611.05/x
  3. Step 3: Cross multiply
    3,155.41x = 4,737.72 × 2,611.05
  4. Step 4: Simplify right side
    3,155.41x = 12,370,423.81
  5. Step 5: Solve for x
    x = 12,370,423.81/3,155.41
  6. Step 6: Final answer
    x = 3,920.39

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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.