Home / 3,386.39-5,076.95-2,153.57

Finding the Fourth Proportional to 3,386.39, 5,076.95 and 2,153.57

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Solution

The fourth proportional to 3,386.39, 5,076.95 and 2,153.57 is: 3,228.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.39 : 5,076.95 = 2,153.57 : x
  2. Step 2: Convert to fraction form
    3,386.39/5,076.95 = 2,153.57/x
  3. Step 3: Cross multiply
    3,386.39x = 5,076.95 × 2,153.57
  4. Step 4: Simplify right side
    3,386.39x = 10,933,531.06
  5. Step 5: Solve for x
    x = 10,933,531.06/3,386.39
  6. Step 6: Final answer
    x = 3,228.67

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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.