Home / 3,420.18-4,719.87-1,927.95

Finding the Fourth Proportional to 3,420.18, 4,719.87 and 1,927.95

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Solution

The fourth proportional to 3,420.18, 4,719.87 and 1,927.95 is: 2,660.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.18 : 4,719.87 = 1,927.95 : x
  2. Step 2: Convert to fraction form
    3,420.18/4,719.87 = 1,927.95/x
  3. Step 3: Cross multiply
    3,420.18x = 4,719.87 × 1,927.95
  4. Step 4: Simplify right side
    3,420.18x = 9,099,673.37
  5. Step 5: Solve for x
    x = 9,099,673.37/3,420.18
  6. Step 6: Final answer
    x = 2,660.58

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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.