Home / 3,211.58-4,432.72-1,885.71

Finding the Fourth Proportional to 3,211.58, 4,432.72 and 1,885.71

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Solution

The fourth proportional to 3,211.58, 4,432.72 and 1,885.71 is: 2,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.58 : 4,432.72 = 1,885.71 : x
  2. Step 2: Convert to fraction form
    3,211.58/4,432.72 = 1,885.71/x
  3. Step 3: Cross multiply
    3,211.58x = 4,432.72 × 1,885.71
  4. Step 4: Simplify right side
    3,211.58x = 8,358,824.43
  5. Step 5: Solve for x
    x = 8,358,824.43/3,211.58
  6. Step 6: Final answer
    x = 2,602.71

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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.