Home / 5,622.49-8,434.64-2,112.77

Finding the Fourth Proportional to 5,622.49, 8,434.64 and 2,112.77

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Solution

The fourth proportional to 5,622.49, 8,434.64 and 2,112.77 is: 3,169.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.49 : 8,434.64 = 2,112.77 : x
  2. Step 2: Convert to fraction form
    5,622.49/8,434.64 = 2,112.77/x
  3. Step 3: Cross multiply
    5,622.49x = 8,434.64 × 2,112.77
  4. Step 4: Simplify right side
    5,622.49x = 17,820,454.35
  5. Step 5: Solve for x
    x = 17,820,454.35/5,622.49
  6. Step 6: Final answer
    x = 3,169.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.