Home / 2,622.81-3,616.11-2,148.96

Finding the Fourth Proportional to 2,622.81, 3,616.11 and 2,148.96

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Solution

The fourth proportional to 2,622.81, 3,616.11 and 2,148.96 is: 2,962.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.81 : 3,616.11 = 2,148.96 : x
  2. Step 2: Convert to fraction form
    2,622.81/3,616.11 = 2,148.96/x
  3. Step 3: Cross multiply
    2,622.81x = 3,616.11 × 2,148.96
  4. Step 4: Simplify right side
    2,622.81x = 7,770,875.75
  5. Step 5: Solve for x
    x = 7,770,875.75/2,622.81
  6. Step 6: Final answer
    x = 2,962.81

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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.