Home / 3,419.76-4,717.88-2,160.36

Finding the Fourth Proportional to 3,419.76, 4,717.88 and 2,160.36

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Solution

The fourth proportional to 3,419.76, 4,717.88 and 2,160.36 is: 2,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.76 : 4,717.88 = 2,160.36 : x
  2. Step 2: Convert to fraction form
    3,419.76/4,717.88 = 2,160.36/x
  3. Step 3: Cross multiply
    3,419.76x = 4,717.88 × 2,160.36
  4. Step 4: Simplify right side
    3,419.76x = 10,192,319.24
  5. Step 5: Solve for x
    x = 10,192,319.24/3,419.76
  6. Step 6: Final answer
    x = 2,980.42

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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.