Home / 3,616.90-4,989.40-2,438.35

Finding the Fourth Proportional to 3,616.90, 4,989.40 and 2,438.35

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Solution

The fourth proportional to 3,616.90, 4,989.40 and 2,438.35 is: 3,363.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.90 : 4,989.40 = 2,438.35 : x
  2. Step 2: Convert to fraction form
    3,616.90/4,989.40 = 2,438.35/x
  3. Step 3: Cross multiply
    3,616.90x = 4,989.40 × 2,438.35
  4. Step 4: Simplify right side
    3,616.90x = 12,165,903.49
  5. Step 5: Solve for x
    x = 12,165,903.49/3,616.90
  6. Step 6: Final answer
    x = 3,363.63

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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.