Home / 3,399.32-4,690.76-2,280.06

Finding the Fourth Proportional to 3,399.32, 4,690.76 and 2,280.06

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Solution

The fourth proportional to 3,399.32, 4,690.76 and 2,280.06 is: 3,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.32 : 4,690.76 = 2,280.06 : x
  2. Step 2: Convert to fraction form
    3,399.32/4,690.76 = 2,280.06/x
  3. Step 3: Cross multiply
    3,399.32x = 4,690.76 × 2,280.06
  4. Step 4: Simplify right side
    3,399.32x = 10,695,214.25
  5. Step 5: Solve for x
    x = 10,695,214.25/3,399.32
  6. Step 6: Final answer
    x = 3,146.28

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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.