Home / 3,439.30-4,745.36-2,041.78

Finding the Fourth Proportional to 3,439.30, 4,745.36 and 2,041.78

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Solution

The fourth proportional to 3,439.30, 4,745.36 and 2,041.78 is: 2,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.30 : 4,745.36 = 2,041.78 : x
  2. Step 2: Convert to fraction form
    3,439.30/4,745.36 = 2,041.78/x
  3. Step 3: Cross multiply
    3,439.30x = 4,745.36 × 2,041.78
  4. Step 4: Simplify right side
    3,439.30x = 9,688,981.14
  5. Step 5: Solve for x
    x = 9,688,981.14/3,439.30
  6. Step 6: Final answer
    x = 2,817.14

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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.