Home / 3,346.10-4,617.78-2,019.78

Finding the Fourth Proportional to 3,346.10, 4,617.78 and 2,019.78

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Solution

The fourth proportional to 3,346.10, 4,617.78 and 2,019.78 is: 2,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,346.10 : 4,617.78 = 2,019.78 : x
  2. Step 2: Convert to fraction form
    3,346.10/4,617.78 = 2,019.78/x
  3. Step 3: Cross multiply
    3,346.10x = 4,617.78 × 2,019.78
  4. Step 4: Simplify right side
    3,346.10x = 9,326,899.69
  5. Step 5: Solve for x
    x = 9,326,899.69/3,346.10
  6. Step 6: Final answer
    x = 2,787.40

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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.