Home / 3,386.41-5,071.51-2,149.95

Finding the Fourth Proportional to 3,386.41, 5,071.51 and 2,149.95

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Solution

The fourth proportional to 3,386.41, 5,071.51 and 2,149.95 is: 3,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.41 : 5,071.51 = 2,149.95 : x
  2. Step 2: Convert to fraction form
    3,386.41/5,071.51 = 2,149.95/x
  3. Step 3: Cross multiply
    3,386.41x = 5,071.51 × 2,149.95
  4. Step 4: Simplify right side
    3,386.41x = 10,903,492.92
  5. Step 5: Solve for x
    x = 10,903,492.92/3,386.41
  6. Step 6: Final answer
    x = 3,219.78

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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.