Home / 3,364.95-4,640.70-2,420.28

Finding the Fourth Proportional to 3,364.95, 4,640.70 and 2,420.28

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Solution

The fourth proportional to 3,364.95, 4,640.70 and 2,420.28 is: 3,337.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.95 : 4,640.70 = 2,420.28 : x
  2. Step 2: Convert to fraction form
    3,364.95/4,640.70 = 2,420.28/x
  3. Step 3: Cross multiply
    3,364.95x = 4,640.70 × 2,420.28
  4. Step 4: Simplify right side
    3,364.95x = 11,231,793.40
  5. Step 5: Solve for x
    x = 11,231,793.40/3,364.95
  6. Step 6: Final answer
    x = 3,337.88

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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.