Home / 3,270.40-4,513.18-1,778.32

Finding the Fourth Proportional to 3,270.40, 4,513.18 and 1,778.32

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Solution

The fourth proportional to 3,270.40, 4,513.18 and 1,778.32 is: 2,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.40 : 4,513.18 = 1,778.32 : x
  2. Step 2: Convert to fraction form
    3,270.40/4,513.18 = 1,778.32/x
  3. Step 3: Cross multiply
    3,270.40x = 4,513.18 × 1,778.32
  4. Step 4: Simplify right side
    3,270.40x = 8,025,878.26
  5. Step 5: Solve for x
    x = 8,025,878.26/3,270.40
  6. Step 6: Final answer
    x = 2,454.10

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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.