Home / 3,414.02-4,710.90-1,921.70

Finding the Fourth Proportional to 3,414.02, 4,710.90 and 1,921.70

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Solution

The fourth proportional to 3,414.02, 4,710.90 and 1,921.70 is: 2,651.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.02 : 4,710.90 = 1,921.70 : x
  2. Step 2: Convert to fraction form
    3,414.02/4,710.90 = 1,921.70/x
  3. Step 3: Cross multiply
    3,414.02x = 4,710.90 × 1,921.70
  4. Step 4: Simplify right side
    3,414.02x = 9,052,936.53
  5. Step 5: Solve for x
    x = 9,052,936.53/3,414.02
  6. Step 6: Final answer
    x = 2,651.69

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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.