Home / 3,420.02-4,719.38-2,022.50

Finding the Fourth Proportional to 3,420.02, 4,719.38 and 2,022.50

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Solution

The fourth proportional to 3,420.02, 4,719.38 and 2,022.50 is: 2,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.02 : 4,719.38 = 2,022.50 : x
  2. Step 2: Convert to fraction form
    3,420.02/4,719.38 = 2,022.50/x
  3. Step 3: Cross multiply
    3,420.02x = 4,719.38 × 2,022.50
  4. Step 4: Simplify right side
    3,420.02x = 9,544,946.05
  5. Step 5: Solve for x
    x = 9,544,946.05/3,420.02
  6. Step 6: Final answer
    x = 2,790.90

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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.