Home / 3,420.03-4,719.49-1,927.92

Finding the Fourth Proportional to 3,420.03, 4,719.49 and 1,927.92

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Solution

The fourth proportional to 3,420.03, 4,719.49 and 1,927.92 is: 2,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.03 : 4,719.49 = 1,927.92 : x
  2. Step 2: Convert to fraction form
    3,420.03/4,719.49 = 1,927.92/x
  3. Step 3: Cross multiply
    3,420.03x = 4,719.49 × 1,927.92
  4. Step 4: Simplify right side
    3,420.03x = 9,098,799.16
  5. Step 5: Solve for x
    x = 9,098,799.16/3,420.03
  6. Step 6: Final answer
    x = 2,660.44

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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.